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a car of mass 2500kg moving at 3m/s, northeast collides with a 3800kg moving northwest at 2.5 m/s. Find their velocity assuming that the collision is perfectly inelastic.​

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Answer:

1.

a)  Fw = F1 - F2 = 7kN-5kN = 5kN

b) a= Fw/m = 5000N / 2500kg = 2 m/s^2

c) a = dV/dT

dT=dV/a=(20 m/s) / (2m/s^2) = 10 s

 

2.

a) Fw=F1-F2=2500N

b) a=Fw/m=2500/10000kg=1/4 m/s^2

c) a=dV/dT

dV=a*dT=(1/4 m/s^2) * 6s = 1.5 m/s

 

 

*d - delta

Explanation:

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