Question

A boxer wisely moves his head backwards just before receiving a punch. Why boxers do so?

• A. Relative speed decreases & punch does not harm much.
• B. By doing so the impact time increases, hence the force decreases.
• C. Both 'a' & 'b' are correct.
• D. Both 'a' & 'b' are wrong.

Answer 1

The correct option is C Both 'a' & 'b' are correct.

$F=\frac{\Delta P}{\Delta t}$
As ,
$\Delta P$ is decreased and $\Delta t$ is increased, value of $F$ decreases rapidly.