Question

nina and jon are practicing an ice skating routine. nina is standing still. jon, who is twice as heavy as nina, skates toward her, pushing nina away with force f. assuming the system is closed, which statement is correct about this system? (1 point) nina experiences a force equal to f. nina experiences a force equal to 2f. nina experiences a force equal to $\frac{f}{2}$. nina experiences a force equal to $f^{2}$.

Explanation:

Step1: Apply Newton's third - law

In a closed system, for every action, there is an equal and opposite reaction. When Jon pushes Nina with force $f$, according to Newton's third - law of motion, the force that Nina experiences is equal in magnitude and opposite in direction to the force exerted by Jon on her.

Answer:

Nina experiences a force equal to $f$.