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 :

Step-by-step solution

Let the speed of the football player be, v . Then, we can write v → i = v - j ^ and v → f = v i ^ . We can write force as, F → = m a → = m v → f - v → i t = m v t i ^ + j ^ Clearly, the direction of the force acting will be towards north-east.