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Question

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

  1. increase
  2. decrease
  3. change according to the smallest force QR
  4. remains constant


Solution

The correct option is D remains constant
Fnet = F1 + F2 + F3 = 0  (Triangle law of vectors)a = 0v = constant
Velocity will not change.

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