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Q.

A lorry and a car moving with same momentum are brought to rest by applying the same retarding force. Then

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a

LORRY  will  come to rest in a shorter distance

b

car will come to rest in shorter distance

c

both come to rest in the same distance

d

none

answer is A.

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Detailed Solution

W=F×S= KE=P22m   given P =CONSTANT and F= CONSTANT SO       S α1m before coming to rest car will travel more distance  and LORRY WILL COME TO REST IN SHORTER DISTANCE.
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