Question

After a piece had been cut off a laboratory meter rule the reminder of it was found to balance about the 45 cm mark.To make it balance about the 50 cm mark a 20 g mass was place at 75 cm mark.
A,where was the center of gravity shortened ruler
B,what was the weight of the shortened ruler

Answer 1

Please I would like you to help me in calculating that question

Answer 2

I'd help if I could, but no matter how many times you post the same question, you will have to wait for someone to stop by who can help. Stop nagging about it.