Question

A 50 kg person stands on a 25 kg platform .he pulls on the rope which is attached to the platform via the frictioless pulleyes as shown in fig. the platform moves upward at a steady rate if the force with which the person pulls the rope is

Answer 1

The above problem can be solved by using the tension of an object.

Here, in the given equation let the tension be T

Then,  2T+T=750 and T=750/3 =250 Newton

In this question tension =force so F=250N

Also the force with which the person pulls the rope is tension.

Therefore the tension is the same as force which is 250N.