Physics question and answers for June 08, 2024
- Q A block of mass 16 kg is moving on a frictionless horizontal surface and comes to rest after compressing the spring of constant 100 N m by 1 6 m...
- Q A block whose mass is 5 7 kg slides on horizontal frictionless table top with a constant speed of 5 m s It is brought momentarily to rest by compressing...
- Q A particle of mass 0 5 kg travels in a straight line with velocity v ax3 2 where a work done by the net force during its displacement from x...
- Q A simple pendulum of length is oscillating with amplitude 0 At some instant it makes angle 0 with the vertical its speed of the bob is v The acceleration of...
- Q 2 4 A bicyclist comes to a skidding stop in 10 m During this process force on the bicycle due to the road is 200N and is directly opposed to...
- Q 25 A long spring when stretched by a distance x has potential energy U On increasing the stretching to nx the potential energy of the spring will be U a...
- Q A water pump lifts water at the rate of 5 litre per second through an average height of 8 m from a well of depth 12 m Its power will...
- Q d 2 cos it A 3 13 Figure 14 26 a shows a spring of force constant k clamped rigidly at one end and a mass m attached to its...
- Q Three charges lie along the x axis The positive charge q1 15 uC is at x 2 0 cm and the positive charge q2 6 0 C is at the...
- Q 3 4E 3 3R The grid each square of 1 m x 1 m represents a region in space containing a uniform electric field If potentials at point O A...
- Q 32 3 9 6 N 3m 1 8N 2 6N 3 3N 4 zero A bicycle is moving with constant acceleration The frictional force on rear wheel is 1 Zero...
- Q 9 A particle undergoing simple harmonic motion has time dependent displacement TI given by x t A sin The ratio of kinetic 90 to potential energy of this particle att...
- Q nless axis N 0 and n e 3 83 Two blocks of masses m 1 kg and m 2 kg are connected by non deformed light spring They are lying...
- Q to is of d 0 3 15 A body with mass 2 kg moves in one direction in presence of a force which is described by the potential energy graph...
- Q 3 101 The following figure 3 116 illustrates the relation between the position of a particle and force The work done in displacing the particle from x 1 to 5...
- Q 3 80 A block of mass 1 kg is attached to one end of a spring of force constant k 20 N m The other end of the spring is...
- Q 6 A small block A of mass m is given a velocity v in horizontal direction as shown The bigger block B is initially at rest The curved surface of...
- Q A body constrained to move along y axis is subjected to a constant force F 1 2 3kN The work done by this force in moving the body a distance...
- Q 3 39 A block of mass 1 kg slides down a curved track from rest that is one quadrant of a circle of radius 1 m Its speed at the...
- Q EN 3 Find the compression in spring so that the block travels a distance of 8m before instantaneous come to rest after block is released 1 1 01 m 3...
- Q A stationary body explodes into two fragments each of rest mass 1kg that move apart at speed of 0 6c relative to the original body The rest mass of the...
- Q PRACTICE ANOTHER 22 0 kg cannonball is fired from a cannon with muzzle speed of 850 m s at an angle of 40 0 with the horizontal A second ball...
- Q Two bars connected by a weightless spring of stiffness k rest on a smooth horizontal plane as shown in figure Bar 2 is shifted a small distance x to the...
- Q A ball of mass 2 kg is moving with speed 4 m s on horizontal smooth surface collides with a nearly weightles spring of force constant 128 N m as...
- Q 2 A raindrop of mass 1 g falling from a height of 1 km hits the ground with a speed of 50 m s If the resistive force is proportional...
- Q Q17 A particle of mass m starts moving from origin along x axis and its velocity varies with position x as v k x The work done by force acting...
- Q WORK 5 A body is being raised to a height h from the surface of earth What is the sign of work done by applied force and gravitational force respectively...
- Q 3 10 A particle of mass m is fixed to one end of a light spring of force constant k and unstretched length 7 The system is rotated about the...
- Q 4 One mole of a monoatomic gas is carried along process ABCDEA as shown in the diagram The net work done by gas is 0 x J Find value of...
- Q 86 Figure shows a man of mass 55 kg standing stationary with respect to a horizontal conveyor belt that is accelerating with 1 ms The net force acting on the...
- Q Two cylindrical vessels of equal cross sectional area A contains water upto height h and h The vessels are interconnected so that the levels in them become equal The work...
- Q 11 g 90 A body of mass 120 kg and density 600 kg m floats in water What additional mass could be added to the body so that the body...
- Q c 3x 2 A spring of stiffness k is kept compressed by applying horizontal force on m by a length x mg K If the force Fis withdrawn suddenly the...
- Q nas overal forces acting on it One force is aryj a force in the negative y direction those magnitude depends on the position of the pol The constant is a...
- Q 4 6 A circular current loop of magnetic moment M is in an arbitrary orientation in an external magnetic field B The work done to rotate the loop by 30...
- Q 10 A horse pulls a cart with constant speed of 7 2 km hr with the help of a rope tied to cart making an angle of 60 with the...
- Q More Than One Correct Answer Type Q19 A man of mass m standing at the bottom of the staircase of height L climbs it and stands at its top a...
- Q The total work done on a particle is equal to the change in its kinetic energy This is applicable Always Only if the conservative forces are acting or it Only...
- Q A stone with weight w is thrown vertically upward into the air from ground level with initial speed vo If a constant force f due to air drag acts on...
- Q A force 3i j 2k N acting on a body maintains its velocity ai 2j 4k m s If rate of change of kinetic energy of the body is zero...
- Q The relationship between force and position is shown in fig in one dimensional case The work done in displacing a body from x 1cm to x 5 cm is dyne...
- Q An object has displacement from position vector i 2j m to 2 21 3j m under the effect of a force F 3xi yj N The work done by this...
- Q Consider the following statements Work is not done when Consider the work done either by the gravitational force or by the man or the earth 1 2 3 A man...
- Q D Tangential force for the motion F mg sin 0 This force retards the motion ii Results A a Tension at the lowest point A inse TA Here 0 0...
- Q A curved road with radius of curvature 200 m is banked with banking angle equal to tan 0 2 The optimum speed of a car is 20 m s 40...
- Q 20 A helium atom mass 4u travels with non relativistic speed v normal to the surface of a certain material makes an elastic collision with an essentially free surface atom...
- Q 38 A crane lifts a mass of 200 kg to a height of 10 m in 10 second The power of the crane is g 10 m s 1 1...
- Q The escape speed of a projectile on the earth surface is 11 2 km s A body is projected out with three times of escape speed The speed of body...
- Q W A heavy weight is suspended from a spring A person rais the weight till the spring becomes slack The work done him is W The energy stored in the...
- Q D A body of mass m is moving with a speed of 8 ms 1 It strikes with another identical body at rest in such a way that after collision...
- Q In a shooting competition a contestant fires a bullet of mass 100 g with speed of 400 m s on a soft plywood of thickness 5 cm The bullet emerges...
- Q An engine pumps water through a hose pipe Water passes through the pipe and leaves it with a velocity of 2 m s The mass per unit length of water...
- Q A particle of mass m approaches a region of force starting from r 0 The potential energy function in terms of distance r from the origin is given by U...
- Q Ex 7 A cannon of mass M resting on a rough horizontal plane of coefficient of friction u is fired with such a charge that the relative velocity of the...
- Q A ball falls under gravity from a height of 10 m with an initial downwards velocity u It collides with the ground losses 50 of its energy in collision and...
- Q In the figure shown the potential energy U of a particle is plotted against its position x from origin Then which of the following statement is correct A particle at...
- Q The 4 9 m long ropes of a swing make an initial angle of 12 2 degrees with respect to the vertical at the highest point in the motion of...
- Q A uniform solid sphere with radius r and mass m compresses a spring with spring constant k by a distance x The spring must be compressed by minimum distance so...
- Q A block of mass m is placed on an another rough block of mass M and both are moving horizontally together without slipping with acceleration a then work done by...
- Q b c 40 J d 20 J Q2 A body moves a distance of 10 m along a straight line under the action of a 5 N force If the...
- Q A body constrained to move in y direction is subjected to a force given by F 21 153 6k N The work done by this force in moving the body...
- Q B are ement B gy Q is 5 The binding energy per nucleon of deuterium and helium atom is 1 1 MeV and 7 0 MeV If two deuterium nuclei...
- Q A stone projected vertically up with a velocity u reaches a maximum height h When it is at a height of 3h 4 from the ground the ratio of KE...
- Q Q3 A box of mass 1 kg is pulled on a horizontal plane of length 1 m by a force of 8 N then it is raised vertically to a...
- Q A uniform wire of length 1 800 m and cross sectional area S 1 0 m is made of a material of density p 8 0 x 10 kg m...
- Q Q4 A horizontal force of 5 N is required to maintain a velocity of 2 m s for a block of 10 kg mass sliding over a rough surface The...
- Q Work Energy and Power 2 Q11 Two bodies with kinetic energies in the ratio of 4 1 are moving with equal linear momentum The ratio of their masses is CBSE...
- Q A force of 10 N making an angle 30 with positive x axis acts on a 2 kg block moving in xy plane Work done by the object as it...
- Q Q7 An object is displaced from position 2 3 m to 4 6 m under a force F 3x 2yj N Find the work done by this force if it...
- Q A ball of mass 2 kg is moving with speed 4 m s on horizonta smooth surface collides with a nearly weightless spring of force constant 128 N m as...
- Q A bug flying horizontally at 2 3 m s collides and sticks to the end of a uniform stick hanging vertically from its other end After the impact the stick...
- Q 18 Paragraph for Two tennis balls of mass 60 gmare attached with a massless rubber thread and held in the vertical position as shown in the fig In this position...
- Q 10 Calculate final velocity of the particle of mass 2 kg if initial velocity of it is 6 m s A force if it is acted on it and whose...
- Q 015 all t A man racing with his son has half the kinetic energy of the son who has half the mass of the father The man speeds up by...
- Q A 750 g collar can slide without friction along the semi circular rod BCD in Fig 2 The rod BCD is in the yz plane The spring is of stiffness...
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