Q75 / 270 · NDA 2019 (Phase 2) · General Ability

When a ball bounces off the ground, which of the following changes suddenly?

A
Its speed
Correct answer
B
Its momentum
C
Its kinetic energy
D
Its potential energy

Solution

The sudden change will be in momentum $(\mathrm{P}=\mathrm{mv})$ of the ball as the velocity will change suddenly after the bouncing off the ground.

Hence, the correct answer is option: 'B'.

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