Question

How much work (in J) is done against the gravitational force on a 3.9 kg briefcase when it is carried from the ground floor to the roof of the Empire State Building, a vertical climb of 380 m?

Answer 1

W = 14523.6 J

Step-by-step explanation:

Given,

Mass = 3.9 Kg

Vertical height , h = 380 m

Work done against gravitational force

W = m g h

g is acceleration due to gravity

W = 3.9 x 9.8 x 380

W = 14523.6 J

Hence, the work done by the gravitational force is equal to W = 14523.6 J