Physics, Chemistry, Maths Forum

Mechanics

Mechanics

by Vatika Harlalka -
Number of replies: 2

The figure shows mass m moves with velocity u. Ring is restricted to move on smooth fixed horizontal rod. Velocity of the ring at that moment?

I thought the answer to be u/2 but the correct answer is 2u. This can happen if we take the rod to be the hypotenuse ie v(ring) * cos60 = u. please explain why?

In reply to Vatika Harlalka

Re: Mechanics

by shashank kumar -

here we have to tell what is the horizontal velocity of the ring, which is given by u* cos60.

In reply to shashank kumar

Re: Mechanics

by Anirban Mukherjee -

Yes the answer should be what you did previously.You cannot resolve the velocity vector in the manner V(ring)*cos60=u...thats wrong.I think the answer is incorrect!