Question:
A ball of mass 10 g is allowed to fall down from 10 m height. After collision with the ground, if 50\% of its energy is lost, then the height reached by the ball is:
A ball of mass 10 g is allowed to fall down from 10 m height. After collision with the ground, if 50\% of its energy is lost, then the height reached by the ball is:
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When energy is lost in a collision, calculate the remaining energy and use it to find the new height.
Updated On: May 15, 2025
- 4 m
- 6 m
- 5 m
- 7 m
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The Correct Option is C
Solution and Explanation
The potential energy lost in the fall is proportional to the height fallen. Given that 50\% of the energy is lost after the ball hits the ground, the remaining energy determines the maximum height reached, which is 5 m.
Thus, the correct answer is option (3).
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