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Question

Physics Question on laws of motion

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:

A

along south-west

B

along eastward

C

along northward

D

along north-east

Answer

along north-east

Explanation

Solution

The correct option is (D): along north-east
Vi=V\vec{V}_i=V(southward)
Vf=V\vec{V}_f=V(Eastward)
ΔV=VfVi\vec{\Delta V} = \vec{V_f}-\vec{V_i}
= along north-east