Gravitational potential energy is the energy stored in an object as the result of its vertical position or height. It can be calculated as its weight times the height. This is:

Where:
- W is the weight of the object
- m is the mass
- g is gravitational acceleration
- h is the height
Evaluating:
R/ The ball has 3.5525 J of potential energy.
Answer:
12km per hour
Explanation:
The formula is distance/time.
24km/2 hours = 12km/1 hour
Answer:
Explanation:
Given
mass of cart with bricks 
inclination 
distance moved 
coefficient of kinetic friction 
it is given that cart is moving with constant velocity so net force on it is Zero
if T is the tension in rope
Net normal Reaction

Friction force 

Horizontal force 
therefore




work done 
