Real-Life Math -- Solution
Force = Mass x acceleration due to gravity
Force = 2,000
kg x 9.8 m / sec2
Force = 19,600 kg/sec2
Work
= force x distance
Work = 19,600 kg / sec2 x 5 m
Work =
98,000 kg2 / sec2
Power = work / time
Power
= 98,000 / 30
Power = 3,266.66 watts
Current = power / volts
Current
= 3,266.66 / 440
Current = 7.42 amps
Because
you want to make sure that the hoist will always be adequately supplied with
power, you will want to pick a motor that supplies more amps than necessary.
So you choose the Titan electric motor.
"We take the same level of
math as the other types of engineering: calculus 1, 2 and 3, linear algebra
and matrices, and a course in differential equations," says Elena Joshi. She
teaches industrial engineering at Pennsylvania State University. "Whether
or not these skills are used on an everyday basis will depend on your job."