1. A child whose mass is 60 kg is skating on a frozen child pond with a velocity of 3 m/s. The child lands on a frictionless 15 kg sled, which is at rest on the ice, and holds on. ice sled (Assume that the ice is frictionless). a. Consider the system of the sled and the child. Note there is no net outside force acting on system. Which statement is true? the momentum of the child is the same before and after the child lands on the sled. • the momentum of the sled is the same before and after the child lands on the sled. • the total momentum of the system of the sled and child are the same before and after the child lands on the sled. b. Use your conclusion from (a) to determine the speed of the sled with the child on it.

1. A child whose mass is 60 kg is skating on a frozen child pond with a velocity of 3 m/s. The child lands on a frictionless 15 kg sled, which is at rest on the ice, and holds on. ice sled (Assume that the ice is frictionless). a. Consider the system of the sled and the child. Note there is no net outside force acting on system. Which statement is true? the momentum of the child is the same before and after the child lands on the sled. • the momentum of the sled is the same before and after the child lands on the sled. • the total momentum of the system of the sled and child are the same before and after the child lands on the sled. b. Use your conclusion from (a) to determine the speed of the sled with the child on it.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 70A

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