0

Guest

Courses New

A particle of mass m is moving with a constant velocity along a line parallel to the +ve direction of the X-axis. The magnitude of its angular momentum w.r.t the origin ? (a) Is zero (b) Goes on increasing as x is increased (c) Goes on decreasing as x is increased (d) Remains constant for all positions of the particle

A particle of mass m is moving with a constant velocity along a line parallel to the +ve direction of the X-axis. The magnitude of its angular momentum w.r.t the origin ?
(a) Is zero
(b) Goes on increasing as x is increased
(c) Goes on decreasing as x is increased
(d) Remains constant for all positions of the particle

Grade:12

1 Answers

Vikas TU
14149 Points
3 years ago

When a particle moves with constant velocity, no external force acts on it. To produce torque and hence to change angular momentum we need some transversal force which is not acting and hence angular moment remains constant.

Also ang. mom = mvr

where r is the perpendicular distance from origin(in thus case) to the direction of motion, which constant as the particle is moving along a straight line. m and v are constant in problem. Thus angular momentum is constant.

Think You Can Provide A Better Answer ?

Other Related Questions on Engineering Entrance Exams

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More