A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. Th

Question

A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is

Accepted Answer

Initial velocity $\vec{v}_i = -v\hat{j}$. Final velocity $\vec{v}_f = v\hat{i}$. Change in velocity $\Delta \vec{v} = \vec{v}_f - \vec{v}_i = v\hat{i} - (-v\hat{j}) = v\hat{i} + v\hat{j}$. The force is in the direction of $\Delta \vec{v}$, which is North-East.

Step-by-Step Solution

Practice All PHYSICS Questions