A Rocket of mass 80.0 gm is fired at 130m sec at a wall, which it pierces and emerges at 50.0 m sec. How much work was needed to pierce the wall?

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03-10-2022
Physics

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A Rocket of mass 80.0 gm is fired at 130m sec at a wall, which it pierces and emerges at 50.0 m sec. How much work was needed to pierce the wall?

Sagot :

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