A toy car of mass 20 kg is stationary and a child rolls a
A toy car of mass 2.0 kg is stationary and a child rolls a truck of mass 3.5kg straight toward it with a speed of 4.0 m/s. What is the velocity of the center of mass of the system containing the two toys?
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a toy car of mass 20 kg is stationary and a child rolls a truck of mass 35kg straight toward it with a speed of 40 ms
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