A particle moving with velocity V is acted by three forces shown by the vector triangle PQR. The velocity of the particle will : 1. increase 2. decrease 3. remain constant 4. change according to the smallest force overrightarrowQR

Topic: Equilibrium of concurrent forces· Laws of Motion

A particle moving with velocity V is acted by three forces shown by the vector triangle PQR. The velocity of the particle will :

A particle moving with velocity \(\vec{V}\) is acted by three forces shown by the vector triangle PQR. The velocity of the particle will :

vector triangle PQR with arrows

1. increase

2. decrease

3. remain constant

4. change according to the smallest force \(\overrightarrow{QR}\)

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 3. remain constant

In the figure the three vectors \(\overrightarrow{PQ},\overrightarrow{QR},\overrightarrow{RP}\) are placed head to tail and form a closed triangle. So their vector sum is zero.

The net force is zero, so by Newton's first law the velocity remains constant.

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

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A particle moving with velocity V is acted by three forces shown by the vector triangle PQR. The velocity of the particle will :

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