Question

BM Practice Problem Josh A student runs directly to a long rope attached to a tree branch. The students speed is entirely horizontal when he grabs ahold of the rope at point A. The student swings up to an unlabeled point, B, and then back to A. The time from A to B to Aist How would t change if the student ran faster? How would t change if the student had a larger mass? How would t change if the student grabbed the rope higher up?

Answer 1

Assuming that air resistance and friction are negligible, the time it takes for the student to swing from point A to point B and then back to point A depends on the length of the rope and the acceleration due to gravity. Therefore, the time (t) would not change if the student ran faster, had a larger mass, or grabbed the rope higher up, as long as the length of the rope and the acceleration due to gravity remain constant.