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A railway truck of mass 4000 kg moving at 3 m/s collides with a stationary truck of mass 2000 kg. The couplings join and the trucks move off together. Calculate their common velocity after collision.
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asked
Jul 7, 2021
in
Physics Form 3
by
anonymous
A railway truck of mass 4000 kg moving at 3 m/s collides with a stationary truck of mass 2000 kg. The couplings join and the trucks move off together. Calculate their common velocity after collision.
linear motion
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answered
Jul 7, 2021
by
anonymous
m
1
u
1
+ m
2
u
2
=(m
1
+ m
2
)
4000 x 3 + 0= 6000v
v= 2m/s
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