When a ball of mass ‘m’ is thrown upwards with a speed ‘u’ it reaches to maximum height ‘h’,whereas when the same ball is thrown upwards with the same speed from the surface of the moon, maximum height reached by ball is more than h.Explain with calculations.When a ball of mass ‘m’ is thrown upwards with a speed ‘u’ it reaches to maximum height ‘h’,whereas when the same ball is thrown upwards with the same speed from the surface of the moon, maximum height reached by ball is more than h.Explain with calculations.
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Law of conservation of momentum is applicable to isolated system (no external force is applied).
In this case, the change in velocity is due to the gravitational force of earth.When the ball is thrown up, negative force of gravity is applied and so the speed becomes zero.After that due to gravitational force the ball falls down with same initial velocity.
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