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9.1 Exercise 4

Avg difficulty 2.5

A skater of mass 40 kg is carrying a box of mass 5 kg. The skater has a speed of 5 m/s with respect to the floor and is gliding without any friction on a smooth surface.

  1. Find the momentum of the box with respect to the floor.
  2. Find the momentum of the box with respect to the floor after she puts the box down on the frictionless skating surface.

OpenStax University Physics Volume 1, 9.1 Linear Momentum, exercise 4

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Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.