Answered

Select the correct answer.
The value of gravitational acceleration of a body on Earth is 9.8 meters/second. The gravitational potential energy for a 1.00 kilogram object is
found to be 12.5 joules. How high is this object above the ground level, where PE = 0?
A.
1.3 meters
B.
3.5 meters
C. 2.0 meters
D. 5.6 meters
E.
7.9 meters
Reset
m. All rights res

Answer :

nkirotedoreen46

Answer:

A. 1.3 meters

Explanation:

  • Gravitational potential energy is a form of energy possessed by a body at rest on the earth's surface.
  • It is given by the formula, mgh, where m is the mass, h is the height and g is the gravitational acceleration.

In this case we are given;

Gravitational acceleration, g = 9.8 m/s²

Mass of the object, m = 1.0 kg

Gravitational potential energy = 12.5 Joules

We are required to calculate the height, h above the ground .

Therefore;

Replacing the known variable in the formula;

12.5 joules = 1.0 kg × 9.8 m/s² × h

h = 12.5 J ÷ 9.8 m/s²

  = 1.276 m

  = 1.3 meters

Thus, the height of the object above the ground is 1.3 meters.

Other Questions