GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If you compare a 50g egg hitting a wall with a velocity of 20m/s and a 50g egg hitting a blanket with a velocity of 20m/s, which has the greater momentum change? (in both cases the egg’s final velocity is zero)
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the egg hitting the wall
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the egg hitting a blanket
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they have the same momentum change
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you need more information.
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Explanation:
Detailed explanation-1: -Detailed Solution. The correct answer is 1000 kg ms–1.
Detailed explanation-2: -In equation form, F • t = m • v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum.
Detailed explanation-3: -Answer and Explanation: Gravitational force is accelerating the egg due to which its velocity increases. Thus momentum and kinetic energy are not conserved.
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