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 :

1. along south-west

2. along eastward

3. along northward

4. along north-east

Doubtly Asked 30 Oct 2026 NEET UG 2023 Practice test neet Save WhatsApp Report

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Answer: 4. along north-east

Force is along the change in velocity, \(\vec F\propto \Delta\vec v=\vec v_f-\vec v_i\).

Initially the velocity is southward, \(-v\hat j\); finally it is eastward, \(+v\hat i\).

\(\Delta\vec v = v\hat i - (-v\hat j)= v(\hat i+\hat j)\), which points north-east.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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