A person kicks a 4.00 kg door with a 32.0 N force causing the door to accelerate at 8.00 m/s 2. Determine the magnitude of the force exerted by the door on the person.

Question

Physics

Fabian Ramirez

6 January, 16:45

A person kicks a 4.00 kg door with a 32.0 N force causing the door to accelerate at 8.00 m/s 2. Determine the magnitude of the force exerted by the door on the person.

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Diana Hood · Answer 1

Newton's Third Law of Motion states, for every action there is an equal and opposite reaction. So if this person kicks the door with a force of 32.0N, then the door kicks back with a force of 32.0N, but instead it is in the opposite direction, so it would be - 32.0N.