an elevator lifts a total mass of 1.1x10^3 kg, a distance of 40 m in 12.5 s. How much power does the elevator demonstrate?
P=w/t
w=mgd (1.1x10^3)(9.8)(40)=4.3x105J
4.3x10^5J/12.5=3.4x10^4
is this right or should 12.5 s be converted?
5 answers
It is correct
3.4×10^4 W
It’s right
34
Yes, 3.4x10^4 W is equal to 34 kW (kilowatts).
1 answer