Questions
A lorry and a car moving with same momentum are brought to rest by applying the same retarding force. Then
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
detailed solution
Correct option is A
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.Talk to our academic expert!
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A simple pendulum is swinging in a vertical plane. The ratio of its potential energies when it is making angles and with the vertical is,
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