Question

How high should a box of mass 20kg is lifted to store energy of 10,000 J? (g=10m/s)​

Answer 1

Answer:

Height, h = 50 meters.

Explanation:

Given the following data;

Mass = 20kg

Potential energy = 10,000 J

Acceleration due to gravity, g = 10m/s²

To find the height of the box;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

$P.E = mgh$

Where,

• P.E represents potential energy measured in Joules.
• m represents the mass of an object.
• g represents acceleration due to gravity measured in meters per seconds square.
• h represents the height measured in meters.

Substituting into the formula, we have;

10000 = 20*10*h

10000 = 200h

Height, h = 10000/200

Height, h = 50 meters.