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A shot fired from cannon explodes in air. What will be the changes in the momentum and the kinetic

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Can a body have momentum without

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Obtain an expression for K.E. of a body moving

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What is meant by a positive work, negative work and zero work? Illustrate your answer with

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A body of mass 2kg initially at rest moves under the action of an applied force of 7N on a table with coefficient of kinetic friction = 0.1. Calculate the (1) Work done by the applied force in 10s (2) Work done by the friction in 10s (3) Work done by the net force on the body in

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Derive the expression for the potential energy stored in a

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When an air bubble rises in water, what happens to its potential

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What should be the angle between the force and the displacement for maximum and minimum

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What is work done in holding a 15kg suitcase while waiting for a bus for 15

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A light body and a heavy body have same kinetic energy. Which one has greater linear

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Can a body have energy without

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A particle moves along the x – axis form `x = 0 t x = 5m` influence of force given by `F = 7 – 2x + 3x^2`. Calculate the work done in doing

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A body of mass 3kg makes an elastic collision with another body at rest and continues to move in the original direction with a speed equal to one – third of its original speed. Fine the mass of the second

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Show that for a freely falling body the sum of its kinetic energy and potential energy remains constant at all points during its

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Ball A of mass m moving with velocity U collides head on with ball B of mass m at rest. If e be the coefficient of restitution then determine the ratio of final velocities of A and B after the

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If the momentum of the body increases by 20% what will be the increase in the K.E. of the

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If two bodies stick together after collision will the collision be elastic or

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When an air bubble rises in water, what happens to its potential

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A spring is kept compressed by pressing its ends together lightly. It is then placed in a strong acid, and released. What happens to its stored potential

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A body is moving along Z – axis of a co – ordinate system is subjected to a constant force F is given by `hati,hatj,hatk` `vecF=-hati+2hatj+3hatk` `N,`Where `hati,hatj,hatk` are unit vector along the x, y and z – axis of the system respectively what is the work done by this force in moving the body a distance of 4m along the Z –

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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