Question

1. why is it advantageous to roll with the punch in boxing?

Explanation:

According to the impulse - momentum theorem \(J = \Delta p=F\Delta t\). When a boxer rolls with the punch, the time \(\Delta t\) of the force acting on the boxer is increased. For a given change in momentum \(\Delta p\) (determined by the motion of the opponent's fist), since \(F=\frac{\Delta p}{\Delta t}\), a larger \(\Delta t\) results in a smaller average force \(F\) acting on the boxer.

Answer:

Rolling with the punch increases the time of impact. By the impulse - momentum theorem \(J = \Delta p = F\Delta t\), for a given change in momentum \(\Delta p\), a larger \(\Delta t\) leads to a smaller average force \(F\) exerted on the boxer, reducing the risk of injury.