(PLEASE TYPE OUT ANSWER IN A NEAT WAY AND ALSO ANSWER STEP-BY-STEP) In his new p
ID: 1574622 • Letter: #
Question
(PLEASE TYPE OUT ANSWER IN A NEAT WAY AND ALSO ANSWER STEP-BY-STEP)
In his new position as Chief Clown with the Haliburton Circus Troupe, Matt finds that he is challenged with new and unusual tasks....the kind of stuff that stacks a resume. During a particular event, Matt lifts a medicated monkey to a height of 4.50 m above a trampoline, then lets it drop.
a) If the mass of the monkey is 20.0 kg, how much work did Matt do when lifting it to this height?
b) If the monkey was lifted in 35 s, how much power was developed?
c) How fast was the monkey moving just before it hit the trampoline?
Explanation / Answer
1) mass of the monkey m = 20.0kg
height h = 4.50m
work done by the Matt to lift the monkey w = F.S = mgh
= 20 x 9.81 x 4.50
= 882.9 J
= 883 J
b) Power P = w/t = 882.9 / 35 = 25.2 watt
c) velocity v = sqroot of (2gh)
= square root of ( 2 x 9.81 x 4.50)
= sq.root of ( 88.29)
= 9.40 m/s
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