A ball of mass m moves with a speed v and it strikes normally with a wall and reflected back normally if it's time of contact with wall is t then find the force exerted by ball on wall.
a)2mv/t
b)mv/t
c)mvt
d)mv/2t
please give me detailed answer
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Answered by
11
rukk answer is 2nd
hope this helps
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Anonymous:
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no answer is (a). i think u is not 0
um when initial velocity is not given we assume it as zero
anyways i tried my best to give u the answer
and i m seriously sure the answer is not a
Answered by
4
Answer:
Explanation:
Since force is change in momentum by time
So applying formula
Force=∆p/∆t
We get,
mv-(-mv)/t
mv+mv/t
2mv/t
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