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A particle is moving in the -  plane with a constant velocity along a line parallel to -axis away from the origin. The magnitude of its angular momentum about the origin

a)

Is zero

b)

Remains constant

c)

Goes on increasing

d)

Goes on decreasing



Question ID - 52689 | SaraNextGen Top Answer

A particle is moving in the -  plane with a constant velocity along a line parallel to -axis away from the origin. The magnitude of its angular momentum about the origin

a)

Is zero

b)

Remains constant

c)

Goes on increasing

d)

Goes on decreasing

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Angular momentum (Linear momentum)  (perpendicular distance to line of motion                             

from the axis)

or angular momentum is moment of momentum. Here, the angle goes on decreasing from  but the perpendicular distance to the line of motion remains constant. Therefore, angular momentum is also constant (linear momentum  is constant).

127 votes


127