Question

a) A man jumps off the roof of an office building onto a trampoline 30 m below. His speed is 5 m/s when he umps from the roof and his mass (with all of her gear) is 60 kg. How high will he go when he bounces back up from the trampoline? You can assume his speed at the top of his bounce is zero. b) Describe the changes in mechanical energy that take place during his jump. c) A lady bug is on a merry-go-round that makes a complete rotation once every 6 seconds. What is the angular velocity of the merry-go-round? d) If the merry-go-round has a radius of 1.8 m and the Hobbit is sitting on the outer edge, what is his linear speed, his tangential acceleration and his radial acceleration if the angular velocity is constant. e) If a man begins pushing the merry-go-round and creates an angular acceleration of 1 rad s2. What will the lady bug's angular velocity, linear speed, tangential acceleration and radial acceleration be after 5 s. Assume the acceleration is constant. f) If the angular acceleration is zero, what type of acceleration must also be zero?

Answer 1

Consenvi ing e 2 20 V - 5mls h 31.27 m and aftewed KE - PE om maxim wm hei ghd pEE C) 6