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NEET-XII-Physics

P1 year:2019

with Solutions - page 3
Qstn# 33 Prvs-QstnNext-Qstn
  • #33
    A particle moving with velocity ``\vec{V}``
    is acted by three forces shown by the vector
    triangle PQR.
    The velocity of the particle will :
    m33.png
    (1) Increase
    (2) Decrease
    (3) Remain constant
    (4) Change according to the smallest force ``\vec{QR}``
    digAnsr:   3
    Ans : ( 3 )
    Sol.
    P
    R Q
    As forces are forming closed loop in same
    order
    So, =netF 0
    &implies; =dvm 0
    dt
    &implies; =v constant