Find the force required to stop a car of mass 100 kg with two
csengers each of 50 kg sitting inside, if it is moving at 60 km/
hr speed and takes 5 s to stop.
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Answer:
f=ma
initial velocities u=60km/hr
60×1000/3600=100/6m/s
final velocity v=0
v-u=at
100/6=a×5
a=100/6×5
a=500/6
Force=200×500/6Newton
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