Q87 / 180 · NEET 2019 (All India) · Physics

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

  • A
    increase
  • B
    decrease
  • Correct answer
    C
    remain constant
  • D
    change according to the smallest force QR→

Solution

We know that sum of vector in a loop arranged in tip-to tail manner is zero.

So, here the sum of forces arranged in tip-to-tail manner is zero.

Fnet→=0
Since, the sum of forces is zero.acceleration will be zero and Velocity will remain constant.

Hence, the correct answer is option: 'C'.

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