Amass of 2000 kg is raised 5.0 m in 10 seconds what is the potential energy of the mass at this height?

a. 98,000 j
b. 9,800 j
c. 0 j

A. 98,000 J

Explanation:

The gravitational potential energy of an object is given by

U = mgh

where

m is the mass of the object

g is the gravitational acceleration

h is the heigth above the ground

In this problem,

m = 2000 kg

g = 9.8 m/s^2

h = 5.0 m

Substituting into the equation, we find

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.