Work, Energy and Power

Question: A ball of weight 0.1 kg coming with speed 30 m/s strikes with a bat and returns in opposite direction with speed 40 m/s, then the impulse is (Taking final velocity as positive)

1) $ - 0.1 \times (40) - 0.1 \times (30)$

2) ..

3) $0.1 \times (40) + 0.1 \times ( - 30)$

4) $0.1 \times (40) - 0.1 \times (20)$

Solution:

Explanation: No Explanation

WEP Elastic and Inelastic collision

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