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A mass  is moving with a constant velocity along a line parallel to the -axis, away from the origin. Its angular momentum with respect to the origin

a)

Is zero

b)

Remains constant

c)

Goes on increasing

d)

Goes on decreasing


Question ID - 100781 :-

A mass  is moving with a constant velocity along a line parallel to the -axis, away from the origin. Its angular momentum with respect to the origin

a)

Is zero

b)

Remains constant

c)

Goes on increasing

d)

Goes on decreasing

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

Angular momentum of mass  moving with a constant velocity about origin is

momentum  perpendicular distance of line of action of momentum from origin,

In the given condition,  is a constant. Therefore, angular momentum is constant



Next Question :

A tube of length  is filled completely with an incompressible liquid of mass  and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity . The force exerted by the liquid at the other end is

a)

b)

c)

d)


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