Question

A 6.5 m long rope hangs vertically from a tree at the edge of a ravine. Betsy wants to use the rope to swing to the other side of the 4.2 m wide ravine. She runs as fast as she can, grabs the rope, and swings over the ravine.

A. Sketch before and after for this situation.

B. As she swings what energy conversion takes place?

C. When she is over the far edge of the ravine, how much higher is she than when she started the swing?

D. Use the above steps to determine how fast she must be running in order to swing across the ravine.

Answer 1