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A 5 kg toy truck moves to 2 m/s east , it colllides head-on with a2kg toy car moving 5 m/s moving west . What is the total momentum of the system? A) kgm/s 30 B) kgm/s 0 C) kgm/s -20 D) non of it
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A 5 kg toy truck moves to 2 m/s east , it colllides head-on with a2kg toy car moving 5 m/s moving west . What is the total momentum of the system?

A) kgm/s 30
B) kgm/s 0
C) kgm/s -20
D) non of it

User Balaswamy Vaddeman
by
3.2k points

1 Answer

7 votes

Momentum

eastward = +

westward = -


\tt P_A=5* 2=10~kg.m/s\\\\P_B=2* 5=-10~kg.m/s

total momentum:


\tt P_A+P_B=10-10=0~kg.m/s

User Tao Peng
by
4.5k points
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