The tower of doom, at elitch gardens in denver, co lifts 15 people 50 m into air. the engineers assume the average person has mass of 70 kg.
How much work does gravity do while the riders are lefted up to height of 50 meters?
If the ride slows down from its maximun speed of 30 m/s to zero in 2 seconds, how much power did it take?Science help did most of it just need help on these two?
W = F*h = Mg*h = (15*70)(-9.8)*50 = -514,500 J
P = E/t = (陆MV虏)/t = 陆(15*70)*30虏/2 = 236.25 KW
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