Thanks for all of you who have been Explanation : Ngrthhuiihuitrtgu ftfcgj to just go ahead. This email address to which they

The answer is d. when it begins to fall back to the child's hand

Cuz i said so. which gives it to b

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on