Question

1. while swimming, an 83 kg swimmer pushes the water backwards with a force of 37 n. what force does the water apply to the swimmer?

37 n backward
37 n forward
2.2 n backward
2.2 n forward

Explanation:

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. The swimmer pushing the water backwards (action) results in the water pushing the swimmer forward (reaction) with the same magnitude of force. The mass of the swimmer ($83$ kg) is a distractor in this problem as we are only concerned with the force - reaction pair.

Answer:

B. 37 N forward