Q1. Carol, a circus performer, is on a swing. She jumps off the swing and lands in a safety net. When Carol leaves the swing, she has a speed of 7 m s-1 and she is at a height of 8 metres above the safety net. Carol is to be modelled as a particle of mass 52 kg being acted upon only by gravity. (a) Find the kinetic energy of Carol when she leaves the swing. - (b) Show that the kinetic energy of Carol when she hits the net is 5350 J, correct to three significant figures. (c) Find the speed of Carol when she hits the net.
Q1. Carol, a circus performer, is on a swing. She jumps off the swing and lands in a safety net. When Carol leaves the swing, she has a speed of 7 m s-1 and she is at a height of 8 metres above the safety net. Carol is to be modelled as a particle of mass 52 kg being acted upon only by gravity. (a) Find the kinetic energy of Carol when she leaves the swing. - (b) Show that the kinetic energy of Carol when she hits the net is 5350 J, correct to three significant figures. (c) Find the speed of Carol when she hits the net.
Related questions
Question
Transcribed Image Text:Q1. Carol, a circus performer, is on a swing. She jumps off the swing and lands in a safety net.
When Carol leaves the swing, she has a speed of 7 m s-1 and she is at a height of 8 metres above
the safety net.
Carol is to be modelled as a particle of mass 52 kg being acted upon only by gravity.
(a) Find the kinetic energy of Carol when she leaves the swing.
(b)
Show that the kinetic energy of Carol when she hits the net is 5350 J, correct to three
significant figures.
(c)
Find the speed of Carol when she hits the net.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
