A ball of mass 10kg is moving with a velocity of 50 ms-1 . On Applying a constant force on the ball for 2s, it acquires a velocity of 70 ms-1 . Calculate: a) The total momentum of the ball. b)The final momentum of ball c)The rate of change of momentum. d) The acceleration of the ball. e) The magnitude of force applied
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When an object falls freely towards the ground, its potential energy decreases and kinetic energy increases.
As the object touches the ground, all its potential energy gets converted into kinetic energy.
As the object hits the hard ground, all its kinetic energy gets converted into heat energy and sound energy.
It can also deform the ground depending upon the nature of the ground and the amount of kinetic energy possessed by the object.
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