Saraf

A flywheel has a small magnet mounted on it. EAch time the magnet passes the coil, a voltage pulse is generated, which is passed to the c.r.o. The display of the c.r.o. is 10cm wide. The flywheel is rotating at a rate of about 3000 revolutions per minute....

A rope is wound round a fixed cylinder of radius r so as to make n complete turns . Show that if one end of the rope is held by a force f, a force f e^2(pi)nu must be applied to the other end to produce slipping,where u is the coeff. of friction between r...

Mass points M and m are kept at the vertices of an equilateral triangle whose sides are of length a. 1. Find the distance between the center of mass of the system and mas point m. 2.Determine the moment of Inertia of the system about the center of mass

The mass of the body attached to the movable pulley is 12 times the mass of the body fixed to the ground. At some instant the body fixed to the ground is released. What will be the height that it can ascend? The heavier mass is initially h meter above the...

How do you solve it?

this question is of ohysics

May I please know how do you do it?first of all how to prove the first part?

That is not mentioned in the question. And that is why I am stuck!

Nope!

The answer is 2h.

Well, there is a picture to this question which shows that the tension on the bigger mass is 2T and the tension on the smaller mass is T.