Question

The diagram below (Fig. 1.32) shows a uniform bar
supported at the middle point 0. A weight of 40 gf is
placed at a distance 40 cm to the left of point 0.
How can you balance the bar with a weight of
80 gf?
​

Answer 1

Answer:

hello mate..

we will put the 80gf at marking of 20 right side of O. As weight is doubled then length will be halfed.

hope it helps..