posted by Cat21 on .
A small, 200 g cart is moving at 1.50 m/s on an air track when it collides with a larger, 2.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.
Q: What is the speed of the large cart after the collision?
How do you set this up? Would it be like (mass of small cart)/(mass of large cart)*1.50m/s? but then how do you use the 0.890 m/s?
Assume linear momentum is conserved.
0.2*1.50 = 0.2*(-0.89) + 2.0*V
0.30 + 1.78 = 2.0 V
V = 1.04 m/s
Start with the law of conservation of momentum:
initial momentum=final momentum
solve for V.
"Cat21". Please refrain from posting questions under different names.