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A car of 10 kg is moving at a speed of 5 m/s collides with a stationary car of 25 kg. If the two cars lock together on impact, what's the combined velocity of the two cars after the collision?
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18 votes
18 votes
A car of 10 kg is moving at a speed of 5 m/s collides with a

stationary car of 25 kg. If the two cars lock together on impact,
what's the combined velocity of the two cars after the collision?

User Bubnoff
by
2.5k points

1 Answer

25 votes
25 votes

Step-by-step explanation:

M1U1+m2u2 = (m1+m2)vf

m1= 10kg

u1=5

m2=25

u2=0

vf=?

10×5+25×0=35 vf

50+0=35Vf

Vf=1.4m/s

User Geovanny
by
3.2k points
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