Question

Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. Each elevator has a mass of 1,000 kg. Calculate the work done by each motor.
A) Not enough information provided to determine this answer
B) 1.0 x 104 J.
C) 9.8 x 104 J.
D) 9.8 x 105 J.

Answer 1

Answer:

(C) Work=9.8×10⁴J

Explanation:

Given data

mass m=1000 kg

building height=10 m

To

Find work

Solution

As we know that:

$Work=mass*gravity*height\\W=mgh\\W=(1000kg)*(9.8m/s^{2} )*(10m)\\W=9.8*10^{4}J$

So option (C) is correct one