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Back to 4.3 Newton’s Second Law of Motion: Concept of a System

4.3 Exercise 21

Avg difficulty 2.5

The rocket sled shown in the figure accelerates at a rate of 49.0 m/s249.0 \text{ m}/\text{s}^{2}. Its passenger has a mass of 75.0 kg. (a) Calculate the horizontal component of the force the seat exerts against his body. Compare this with his weight by using a ratio. (b) Calculate the direction and magnitude of the total force the seat exerts against his body.

OpenStax College Physics 2e, 4.3 Newton’s Second Law of Motion: Concept of a System, exercise 21

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.