Physics question and answers for May 21, 2024
- Q another An object A of mass 1 kg is projected vertically upward with a speed of 20 m s At the same momen object B of mass 3 kg which...
- Q A uniform ring rolls on a horizontal surface without sliding The velocity of the centre is v It encounters a step of height 0 3 R where R is the...
- Q and A of a rectangular plate ABCD each are placed at th in the figure A mass of 8 kg has to be the plate so that the centre of...
- Q A particle of mass m moving east ward with a speed V collides with another particle of the same mass moving north ward with the same speed V The two...
- Q Q 16 O 44 1 00 18 Consider the following statement When jumping from some height you should bend your knees as you come to rest instead of keeping your...
- Q Q 2 Two putty balls of equal mass moving with equal velocity in mutually perpendicular directions stick together after collision If the balls were initially moving with a velocity of...
- Q A rod of length L has a linear mass density Ax B A and B are constants Determine the location of the centre of mass from one end of the...
- Q Mass is distributed uniformly over a thin square plate If two end points of a diagonal are 0 0 and 2 2 what are the co ordinates of the center...
- Q A particle of mass 2 0 kg is moving in the xy plane at a constant speed of 0 80 m s in the x direction along the line y...
- Q plane which is circular at the ends with on a smooth radius r as shown in the figure The masses of the balls are m m m m 2 2...
- Q A particle of mass m moving with velocity u collides elastically head on with a particle of mass 2m at rest After collision the heavier particle moves with velocity 2u...
- Q A hollow smooth U tube of mass 2m is lying at rest on a smooth horizontal surface Two small smooth balls of mass m moving with velocity u enter into...
- Q Two homogenous disc A and B of mass m and 3m having radii 3a a respectively are placed in touch The distance of centre of mass from centre of disc...
- Q 5 A square plate and a circular plate made up of same meterial are placed touching each other on a horizontal table If the side length of square plate is...
- Q Two balls are thrown simultaneously in air The acceleration of the centre of mass of the two balls while in air Is equal to g Is equal to g 2...
- Q Two small bodies of masses 1 kg and 4 kg are at rest on a smooth horizontal surface When they are at a separation of 10 m they are released...
- Q This means that the medians i e on the centroid Example 2 Three masses 3 4 and 5 kg are located at the corners of an equilateral triangle of side...
- Q B of 2 Problem 7 19 A uniform piece of metal sheet is cut in the form as shown in the fig Locate the center of mass of the piece...
- Q A cannon of mass M 200 kg is positioned a top a narrow wall as shown It fires a ball of mass m 2kg horizontally across a plane Unfortunately the...
- Q 116 Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass The centre...
- Q 4 0 kg 0 60 m Note Figure not drawn to scale 1 0 kg 0 10 m In order to model the motion of an extinct ape scientists measure...
- Q A thin uniform sheet of metal of uniform thickness is cut into the shape bounded by the line x a and y kx as shown Find the coordinates of the...
- Q 9 Two blocks of masses 10 kg and 30 kg are placed along a vertical line The first block is raised through a height of 7 cm By what distance...
- Q D Consider a gravity free hall in which a tray of mass A carrying a cubical block of ice of mass m and edge L at rest in the middle...
- Q 1 In a head on elastic collision of two bodies of equal masses a the velocities are interchanged b the speeds are interchanged c the momenta are interchanged d the...
- Q A square plate of edge d and a circular disc of diameter d are placed touching each other at the midpoint of an edge of the plate as shown in...
- Q 3 Seven homogeneous bricks each of length L are arranged as shown in figure 9 E2 Each brick is displaced with respect to the one in contact by L 10...
- Q D A body moving towards a finite body at rest collides with it It is possible that a both the bodies come to rest b both the bodies move after...
- Q 16 A man of mass m is standing on a plank of equal mass m resting on a smooth horizontal surface The man starts moving on the plank with speed...
- Q The end A of a ladder AP of length 5 m kept inclined to a vertical wall is slipping over a horizontal surface with velocity of 2 m s when...
- Q 8 Two blocks of masses 10 kg and 20 kg are placed on th X axis The first mass is moved on the axis by a distane of 2 cm...
- Q A stationary bomb explodes into two parts of masses 3 k and 1 kg The total KE of the two parts after explosion is 2400 J The KE of the...
- Q Lower surface of a plank is rough and lies over a rough horizontal surface Upper surface of the plank is smooth and has a smooth hemisphere placed over it through...
- Q A uniform rod AB of length 1 m is placed at edge of a smooth table as shown in figure It is hit horizontally at point B from left If...
- Q Three identical spheres of mass M each are placed at the corners of an equilateral triangle of side 2 m Taking one of the corners as the origin as shown...
- Q Two balls are thrown simultaneously in air The of the centre of mass of the two balls while acceleration in air a depends on the direction of the motion of...
- Q A hungry 173 kg lion running northward at 72 8 km hr attacks and holds onto a 30 2 kg Thomson s gazelle running eastward at 58 2 km hr...
- Q A particle of mass m is projected with velocity v making an angle of 45 with the horizontal When the particle lands on the ground level the magnitude of the...
- Q D Potential energy of particle of mass 2 kg oscillating on x axis is given as U x 2 2 10 The total energy of oscillation is 26 J Find...
- Q A wedge free to move of mass M has one face making an angle a with horizontal and is resting on a smooth rigid floor A particle of mass m...
- Q A sphere of diameter r is cut from a solid sphere 1 of radius r such that the centre of mass of remaining part be at maximum distance from original...
- Q 11 Which of the following statements are correct a Centre of mass of a body always coincides with the centre of gravity of the body b Centre of mass of...
- Q 6 There is a square caromboard of side a A striker is projected in hole after two successive collisions Assuming the collisions to be perfectly elastic and the surface to...
- Q A disc of mass 10 g is kept floating horizontally by throwing 10 marbles per second against it from below If the mass of each marble is 5 g What...
- Q 8 Problem 7 While punga KIL folates his leg 4000 the mp jou he moment of merta of the leg is 3 5 kgm and its otational kinetic energy is...
- Q 3 A body at rest breaks into two pieces of equal masses The parts will move a in same direction c in opposite directions with equal speeds d in opposite...
- Q 3 A carpenter has constructed a toy as shown in the figure If the density of the material of the spheres 10 times that of cone the position of the...
- Q Consider the following two statements A Linear momentum of the system remains constant B Centre of mass of the system remains at rest a A implies B and B implies...
- Q 39 Two blocks of equal masses m are released from the top of a smooth fixed wedge as shown in the figure The acceleration of the centre of mass of...
- Q A bullet hits a block kept at rest on a smooth horizontal surface and gets embedded into it Which of the following does not change a linear momentum of the...
- Q A light rod of length has two masses m and m attached to its two ends The moment of inertia of the system about an axis perpendicular to the roc...
- Q 0 Mass is distributed uniformly over a thin square plate If two end point of a diagonal are 2 0 and 2 2 what are the coordinates of centre of...
- Q of mass 3 kg and radius 3cm moving with velocity of 10 m s collides obliquely with another ball of mass 2 kg radius 2 cm kept at rest The...
- Q d 0 11 A horizontal turn table in the form of a disc of radius r carries a gun at G and rotates with angular velocity about a vertical axis...
- Q Top View Cart A is traveling east when it collides with cart B which is traveling north Cart A has a mass of 3 05 kg and eart B has...
- Q 5 77 a Four identical planks each of lengths L are arranged one above the other over a table as shown Each projects a distance a beyond the edge of...
- Q A of mass m initially at rest height of 1 25 m on a frictionless ramp collides with and sticks to an identical particle B of mass m at rest...
- Q 36 Figure 8 E4 shows a particle sliding on a frictionless track which terminates in a straight horizontal section If the particle starts slipping from the point A how far...
- Q Problem 7 4 When n number of particles of masses m 2m 3m nm are at distances x 1 x 4 x3 9 xn n units respectively from origin on...
- Q nm Problem 7 3 When n number of particles of masses m 2m 3m nm are at distances x 1 x 2 x 3 X n units respectively from origin...
- Q Problem 7 2 When n number of particles each of mass m are at distances x 1 x 2 x3 3 x n units from origin on the x axis...
- Q A ball of mass 10 kg hits a smooth horizontal surface with a speed of 10 2 m s at an angle of 45 as shown in the figure The...
- Q atom at rest After collision the neutron is scattered at right angles to its initial direction of motion What could be the highest energy left over with the helium a
- Q A ball of mass m is released from the top of an inclined plane of inclination 0 as shown It strikes 31 rigid surface at a distances from top elastically...
- Q A foot baller kicks a football coming towards him at 10 m s such that ball comes to rest after kick Assume collision to be perfectly elastic and football to...
- Q A ball is projected with velocity u 20 m s at an angle 60 to the horizontal towards a massive wall which approaches the ball with velocity u 7 m...
- Q The collision in which the relative velocity of approach before collision is equal to relative velocity of separation after collision is Completely inelastic collision Elastic collision Inelastic collision Both elastic...
- Q 4 0 m s M Before Jump After Jump 9 As shown in the figure above a child of mass 20 kg who is running at a speed of 4...
- Q Find the accelerations a a as of the shown in figure 6 E8 if a horizontal force of 10 N is applied on a 2 kg block b 3 kg...
- Q An object of mass 3 kg moving with a velocity of 5 m s along the positive X direction breaks up by itself into three equal mass fragments Two of...
- Q Two point masses are connected by a light inextensible string are lying on a frictionless surfa MOITTOON shown in figure An impulse of magnitude 10 kg m s is given...
- Q Two container A and B are partly filled with water and closed The volume of A is twice that of B and it contains half the amount of water in...
- Q 30 Consider a large block placed on a smooth horizontal surface with a man standing at one end of the block The man walks to the other end relative to...
- Q 26 When an explosive shell travelling in a parabolic path under the effect of gravity explodes in the mid air the centre of mass of the fragments will move a...
- Q these 20 A disc of radius r cm of uniform thickness and uniform density o has a square hole with sides of length r 1 cm One corner of the...
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