Rotational MotionHard
Question
A particle of mass m moves with a constant velocity. Which of the following statements is not correct about its angular momentum :
Options
A.it is zero when it is at A and moving along OA
B.the same at all points along the line DE
C.of the same magnitude but oppositely directed at B and D
D.increases as it moves along the line BC
Solution
Angular momentum = 
As velocity is constant = p remains constant.
Along line BC angular momentum remains same.
∴ The distance of the particle momentum both having constant value about ′O′
As velocity is constant = p remains constant.
Along line BC angular momentum remains same.
∴ The distance of the particle momentum both having constant value about ′O′
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