lets do adolph
(1/2) m v^2 = m g h
v^2 = 2 g h = 2 (9.81)(.56)
so
v = 3.31 m/s at push
so adolph momentum = 104*3.31 = 345 kg m/s
Ed has the same magnitude of momentum
80 V = 345
Ved = 4.31 m/s
4.31^2 = 2 (9.81) (h)
h = .9464 m
Adolf and Ed are wearing harnesses and are hanging at rest from the ceiling by means of ropes attached to them. Face to face, they push off against one another. Adolf has a mass of 104 kg, and Ed has a mass of 80 kg. Following the push, Adolf swings upward to a height of 0.56 m above his starting point. To what height above his own starting point does Ed rise?
1 answer