Question

The mass of a uniform ladder of length 6m is 20kg.A mass 60 kg is placed on the ladder at a height of 2m from the bottom. The position of centre of mass from the bottom is​

Answer 1

Answer:

weight of ladder acts at a height of 2.5 m from base and weight of man is at 2 m from base

So center of mass from base

Ycm=(2.5)(20)+2(60)(20+60)Ycm=(2.5)(20)+2(60)(20+60)

=2.125m=2.125m from base