A football kick returner catches the ball just as a player from the opposing team dives to tackle him. At the time of impact, the returner’s momentum is 0 kg-m/s, and the diving player’s momentum is 130 kg-m/s. What will the magnitude of the total momentum be just after the collision?(1 point)

Responses

260 kg-m/s
260 kg-m/s

130 kg-m/s
130 kg-m/s

0 kg-m/s
0 kg-m/s

65 kg-m/s

1 answer

The total momentum of a system is conserved in the absence of external forces.

In this situation:

  • The momentum of the kick returner before the collision is 0 kg-m/s.
  • The momentum of the diving player is 130 kg-m/s.

To find the total momentum just after the collision, we add the momenta of both players at the moment before the collision:

Total momentum = momentum of returner + momentum of diving player Total momentum = 0 kg-m/s + 130 kg-m/s = 130 kg-m/s

Therefore, the magnitude of the total momentum just after the collision will be 130 kg-m/s.