Question

Puck 1 (1 kg) travels with velocity 10 m/s to the right when it collides with puck 2 (1 kg) which is initially at rest. After the collision, puck 1 moves with a velocity of 2.5 m/s. Assume that no external forces are present and therefore the momentum for the system of pucks is conserved. What is the final velocity (in m/s) of puck 2 after the collision? Since the total momentum of the system is conserved, the initial total momentum (= m?v??) equals the final total momentum (=m?v?? + m?v??). You are given the masses of both pucks and two of the three velocities, which is sufficient information to solve for v??.

          Puck 1 (1 kg) travels with velocity 10 m/s to the right when it collides with puck 2 (1 kg) which is initially at rest. After the collision, puck 1 moves with a velocity of 2.5 m/s. Assume that no external forces are present and therefore the momentum for the system of pucks is conserved. What is the final velocity (in m/s) of puck 2 after the collision?

Since the total momentum of the system is conserved, the initial total momentum (= m?v??) equals the final total momentum (=m?v?? + m?v??). You are given the masses of both pucks and two of the three velocities, which is sufficient information to solve for v??.

Puck 1 (1 kg) travels with velocity 10 m/s to the right when it collides with puck 2 (1 kg) which is initially at rest. After the collision, puck 1 moves with a velocity of 2.5 m/s. Assume that no external forces are present and therefore the momentum for the system of pucks is conserved. What is the final velocity (in m/s) of puck 2 after the collision?

Since the total momentum of the system is conserved, the initial total momentum (= m?v??) equals the final total momentum (=m?v?? + m?v??). You are given the masses of both pucks and two of the three velocities, which is sufficient information to solve for v??.

Added by Kathleen W.

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