Question
After a piece had been cut off a laboratory meter rule,the remainder 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 placed at the 75 cm mark.
a, where was the center of gravity of the shortened ruler?
b, what was the weight of the shortened rule
a, where was the center of gravity of the shortened ruler?
b, what was the weight of the shortened rule