1.

A ball of mass 1kg moving with a speed of 10mper second rebound after striking normally a perfectly elastic wall .what is change in linear momentum of the ball?

Answer»

⛦Hᴇʀᴇ Is Yoᴜʀ Aɴsᴡᴇʀ⚑
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➧ m = 0.5 KG
➧ u = 10 m/s
V = -10 m/s

INITIAL momentum = m
➾ u = 0.5 x 10
➾ 5 kg m/s

➧ Final momentum = mv
➾ 0.5 x (-10)
➾ -5 kg m/s

➧ Change in momentum = mv - mu
➾ -5-5
➾ -10 kg m/s ...✔

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Thanks...✊



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