NEET Physics Impulse & Momentum MCQ Question
A ball of mass 0.2 kg is moving with an initial velocity of 10 m/s towards a wall and rebounds with the same speed. What is the impulse imparted to the ball by the wall?
4 N s
2 N s
0 N s
1 N s
Correct Answer
Detailed Explanation
The change in momentum is given by the final momentum minus the initial momentum. Since the ball rebounds with the same speed, the change in momentum is 0.2 kg × 10 m/s - (0.2 kg × -10 m/s) = 4 N s.
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