Washington Comprehensive Assessment Of Science (WCAS) Grade 8 Practice Questions - Washington Comprehensive Assessment Of Science - Grade 8 Exam

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A swimmer pushes backward against the pool wall with her feet with a force of 200 Newtons. According to Newton's Third Law, what force does the pool wall exert on the swimmer's feet?

200 Newtons forward in the opposite direction. 100 Newtons backward in the same direction. 0 Newtons because inanimate walls cannot exert forces. 400 Newtons upward toward the sky.

Correct Answer:

200 Newtons forward in the opposite direction.

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