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Motion in A Plane question

2019 · Q136
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Motion in A Plane question

2019 · Q136

NEETPhysicsMotion in A PlaneMCQ+4 / −1
A particle moving with velocity V→\overrightarrow VV is acted by three forces shown by the vector triangle PQR. The velocity of the particle will : NEET 2019 Physics - Motion in a Plane Question 11 English
  1. A
    remain constant
  2. B
    increase
  3. C
    decrease
  4. D
    change according to the smallest force QR→\overrightarrow {QR}QR​
View written solutionFree

Correct answer: A

From the given diagram, the forces are forming closed loop in same order.

∴\therefore∴ Fnet = 0→\overrightarrow 0 0

⇒\Rightarrow⇒ mdvdtm{{dv} \over {dt}}mdtdv​ = 0→\overrightarrow 0 0

⇒\Rightarrow⇒ v→\overrightarrow v v = constant.

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