Physics question and answers for May 28, 2024
- Q 21 A body of mass 5 kg explodes at rest into three fragments with masses in the ratio 1 1 3 The fragments with equal masses fly in mutually perpendicular...
- Q The carts in figure are sliding to the right at 2 m s on a smooth level ground The spring between them has a spring constant of 60 N m...
- Q rope is wound around a hollow cylinder of mass 3 kg and radius 40 40x cm What is the angular acceleration of the cylinder if the rope is pulled with...
- Q Consider a horizontal surface moving vertically upward with velocity 2 m s A small ball of mass kg is moving with velocity 21 23 If coefficient of restitution is 1...
- Q The wedge with hemi spherical cut of radius R has mass 5m It is placed on friction less horizontal surface A small sphere of radius r and mass m is...
- Q A small ball is thrown horizontally from a 20 m high window of a building with velocity 10 m s The ball collides with the smooth horizontal ground and immediately...
- Q Q 3 54 A window of a building with velocity 10 m s The ball collides with the smooth horizontal ground and immediately after the first rebound its velocity vector...
- Q 7 Two bodies of masses 2 kg and 4 kg are m with velocities 2 m s and 10 m s towards each due to mutual gravitational attraction hat velocity...
- Q 9 a A shell of 80 kg mass is travelling with a velocity of 500 m s During its motion it splits into two equal portions which continue to travel...
- Q Both the blocks oscillate with the same time period but their amplitude of oscill ation is different Find maximum elongation in the spring and the maximum compression in the s...
- Q A wedge is placed on ground All the surfaces are smooth The block rises to the highest possible point on the curved track and returns back The velocity of small...
- Q a Lightning bolt A hits a pole 200 m west of Albert Lightning bolt B hits a tree 800 m west of him Albert sees the flash from bolt A...
- Q A ball strikes a smooth horizontal ground at an angle a 45 with the vertical What cannot be the possible angl of its velocity with the vertical after the collisior...
- Q Three particles of different masses and velocities collide with each other and stick together to form a single particle Find the speed of the newly formed particle O u 2m...
- Q A smooth disc of radius R is placed on a smooth surface Another particle of same mass strikes it as shown elastically After collision angle between linear velocities of particle...
- Q A ball of mass m is fired from a cannon of mass nm without the ball with a relative speed of vo The ball is projected horizontally smooth A The...
- Q A person slowly pulls a water bucket of mass 2m from a well with a uniform rope of mass m and length I starting with free end in his hand...
- Q A point mass of 2 kg collides elastically with a stationary point mass of 5 kg The 2 kg mass reverses its direction and moves with a speed of 4...
- Q man of mass M stands at one end of a plank of length I of mass 2M that rests on a smooth horizontal surface If the man starts walking towards...
- Q Two equal masses of 4 kg each have velocities v 21 21 ms and V 41 41 ms initially 1 If a constant force F 241 N is applied on...
- Q Two point masses M are kept fixed on the x axis at a distance a from th origin another point mass m is moving in a circular path of radius...
- Q Three blocks A B and C are placed as shown in figure Block A has mass m and moving with velocity v Block B of mass m and block C...
- Q 0 A mass of 3 kg is placed on the massless piston of area 10 cm of a cylindrical vessel containing a gas Find the fractional change in surface area...
- Q option in this case will result in 1 marks Selecting any incorrect option s second option in this case with or without selection of any correct option s will result...
- Q A uniform solid sphere of mass M and radius R is lying on a rough M horizontal surface A particle of mass M strikes the sphere at an angle with...
- Q A bomb at rest explodes into two pieces of mass 2 kg and 4 kg respectively If the relative velocity of pieces after explosion is 60 m s then kinetic...
- Q b The magnitude and direction of velocities of two identical frictionless balls before they strike each other is shown in Fig 9 b Assume e 0 9 determine the magnitude...
- Q 31 Blocks of masses m 2m 4m and 8m are arranged in a line of a frictionless floor Another block of mass m moving with speed along the same line...
- Q 38 A tennis ball is released from a height h and after falling freely on a wooden floor it rebounds and reaches height h 2 The velocity versus height of...
- Q 4 A long flat vehicle of mass M with intial speed u pass below a stationary hopper Sand fal on to the vehicle at a constant rate kg sec starting...
- Q Two blocks of masses 2m and 3m are connected by a ligh string of length 2L Both blocks can slide freely along a horizontal bar A block of mass m...
- Q Choose the correct alternative a For general rotational motion angular momentum L and angular velocity w need not to be parallel b For a rotational motion about a fixed axis...
- Q A long flat vehicle of mass M with initial speed u passes below a stationary hopper Sand falls on to the vehicle at a constant rate kg sec starting at...
- Q A mass travels in a straight line with velocity vo perpendicular to a uniform stick of mass m and length L which is intially at rest The distance from the...
- Q A block of mass m moving with a velocity vo collides with a stationary block of mass M at the end of whic a spring of stiffiness k is attached...
- Q Q 3 a The magnitude and direction of the velocity of two identical frictionless balls before they strike each other is shown in Fig assume e 0 9 determine the...
- Q Case 1 Carts A starts from rest on a hill at a height h above the ground It rolls down and collides head on with cart B which is initially...
- Q In the figure shown a tube has a spring that can be compressed A latch inside the tube can hold the spring in the compressed state an lock it The...
- Q pendulum with bob of mass 4 kg and length 1 m initially held at an angle 600 with the vertical The bob of the pendulum hits a block of mass...
- Q Three spheres A B and C each of mass I kg and radu R 2K and kept touching each other as shown in the figure Assuming the centres of the...
- Q The figure shows two rods BC and OA hinged from B and O respectively Rod BC has a groove in which point A of rod OA can slide smoothly At...
- Q from the beginning Determine the minimum speed v of its mass centre at the bottom so that it rolls completely around the loop of radius R r without leaving the...
- Q stitution e is 1 3 IN 13 2 lew In English height of 50 m and rebounds several times from ground If total distance covered by the ball is 100...
- Q A hollow cylinder closed at both ends of length L and mass m is attached with a spring of force constant K An equal mass with negligible radius is kept...
- Q Q 8 A 4 pole induction motor is working on 50Hz ac supply and the value of slip is 0 04 at no load and 0 03 at full load...
- Q Two identical small spherical object A and B are projected in vertical plane from same horizontal level If collision between both the particle is perfectly elastic Then match the correct...
- Q 10 Assertion Two particles moving in the same direction do not lose all their energy in completely inelastic collision Reason Principle of conservation of momentum holds true for all kinds...
- Q Four identical thin rods each of mass M and length form a square frame Moment of inertia of this frame about an axis through the centre of the square and...
- Q A uniform semicircular wire of mass M 1 2 kg and radius R 1m is free to rotate about a fixed horizontal axis coinciding with the diameter passing through open...
- Q 3 Two smooth spheres A and B of masses 4 kg and 8 kg move with velocities 9 m s and 3 m s in opposite directions If A rebounds...
- Q A thin circular disc lying in the xy plane has a surface mass density o given by 1 0 11 1 1 0 if rsR if r R where r...
- Q A man has constructed a toy as shown in figure If density of the material of the sphere is 12 times of the cone compute the position of the centre...
- Q 56 Three resistances P Q R each of 2 92 and a unknown resistance S form the four arms of Wheatstone bridge circuit When a resistance 62 is connected in...
- Q A cart of mass 500 kg loaded with a block of mass 50 kg is at rest on a smooth horizontal surface The block is thrown out with speed 120...
- Q 1 4 C A ball is projected with velocity vo gh at an angle q to the horizontal towards a vertical smooth wall distant d from the point of projection...
- Q b A toy car of mass 1 kg moves westwards with a speed of 2 m s It collides head on with a toy train The toy train has a...
- Q c 25 Three girls Shivangi Radhika and Saili sat or one side of see saw at distances of 1m 1 2m and 1 5m from the fulcrum that is situated...
- Q Sri Chaitanya IIT Academy 08 12 19 Sri Chaitanya Sr Chaina 1 L 1 1l Jee Adv 2016 P1 PTA 13 Q P upper sphere without applying any force The...
- Q Consider the shaded area shown in Figure 1 Suppose that a 120 mm b 190 mm and r 80 mm Problem 10 32 Consider the shaded area shown in Figure...
- Q 1 SECTION A For the vertices given arrangement of masses on the and at mid point of side of an equilater triangle of side d as shown the height of...
- Q Two particles having masses m and m are placed at a separation r between them Let m2 be displaced away from m by a distance x By what distance m...
- Q el ball of mass 15 0 g is fired from the small canon onto a wooden plank on that is placed horizontal to the ground The wooden plank slides to...
- Q 6 A solid cube of edge a is melted and moulded in eight identical small solid cubes and are placed on one other on a straight line with the edge...
- Q 21 22 A thin rod of mass m and length L lies on a frictionless horizontal surface and is hinged at one of its ends such that it can rotate...
- Q In shown figure three identical particle moving with same velocity v 12 m s collides simultaneously After collision A comes to rest B retraces its path with same speed Velocity...
- Q A body A is thrown vertically upward with an initial velocity Simultaneously a second body B falls from rest from the height h in the same vertical direction calling the...
- Q hr mir Three identical spherical shells each of mass m and radius rare placed as shown in figure Consider an axis XX which is touching to two shells and passing...
- Q A rubber ball of mass 1 kg hits the surface at an angle of 30 with surface and rebounds at angle of 60 with surface without change in speed If...
- Q A 9 900 g bullet is fired into a stationary block of wood having mass m 4 990 kg The bullet imbeds into the block The speed of the bullet...
- Q From a uniform disk of radius a an isosceles right angled triangle with hypotenuse as the diameter of this disk is removed The distance of the centre of mass of...
- Q al th e 11 22 A ball x of mass 1 kg is moving x axis collides elastically with another ball Y mass 2kg moving with 6m s in opposite...
- Q 33 If the linear density of the rod of length L varies as A Bx where x is distance from one end then its centre of mass is given by...
- Q w A a small circular portion of area A 31 is cut ou at a distance 3R 4 from the center O as shown Th center of mass of leftover...
- Q 51 The mass number of a nucleus is M which is at rest initially It emits an a particle of kinetic energy 5 6 MeV then the Q value of...
- Q The surface mass density mass per unit area of a semi circular disc of radius R varies as ax where is a constant vector along positive x axis and is...
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