Terry Lemus, whose mass is 60.0 kg, starts her trapeze act on a platform 20.0 m...

 

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Terry Lemus, whose mass is 60.0 kg, starts her trapeze act on a platform 20.0 m above the safety net. She is holding the bar of the trapeze so that its 5.00 m ropes are stretched taut horizontally. a) Calculate Terry's gravitational potential energy with respect to the level of the net. b) Terry then steps off the platform and swings down until the trapeze ropes are vertical. At that moment, what is her gravitational energy relative to the net? c) At the bottom of the swing, what are Terry's kinetic energy and speed? d) Just at the bottom of the swing Terry's hands slip and she falls to the net. With what kinetic energy and speed will she strike the net? Terry Lemus, whose mass is 60.0 kg, starts her trapeze act on a platform 20.0 m above the safety net. She is holding the bar of the trapeze so that its 5.00 m ropes are stretched taut horizontally. a) Calculate Terry's gravitational potential energy with respect to the level of the net. b) Terry then steps off the platform and swings down until the trapeze ropes are vertical. At that moment, what is her gravitational energy relative to the net? c) At the bottom of the swing, what are Terry's kinetic energy and speed? d) Just at the bottom of the swing Terry's hands slip and she falls to the net. With what kinetic energy and speed will she strike the net?

Answer rating: 100% (QA)

To solve the physics problem described in the image well first need to consider the principles of conservation of energy and the specific definitions of gravitational potential energy and kinetic ener... View the full answer