A 63 kg object needs to be lifted 7 meters in 5 seconds. Approximately how much horsepower is required to achieve this task? A. 864.36 hp B. 0.59 hp C. 441 hp D. 1.16 hp
power = work done /time taken work done = mgh m = mass = 63 kg g = gravitational constant = 9.8m/s^2 h = height = 7 meters power = mgh/time = (63 * 9.8 * 7)/5 = 4321.8/ 5 = 864.36 watts (1 HP = 746 watts) hp = 864.36/746 =1.16hp
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Asked 6/17/2019 8:01:10 AM
Updated 8/1/2020 12:44:40 PM
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8
power = work done /time taken
work done = mgh
m = mass = 63 kg
g = gravitational constant = 9.8m/s^2
h = height = 7 meters
power = mgh/time = (63 * 9.8 * 7)/5 = 4321.8/ 5 = 864.36 watts
(1 HP = 746 watts)
hp = 864.36/746 =1.16hp
Added 8/1/2020 12:44:40 PM
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