energy - A cart is loaded with a brick and pulled at constant speed along an inclined plane to the height of a seat-top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seat-top?

Krishna (last edited 2 years ago) (Expert, Educator @Qalaxia)

Energy stored or conserved in an object is known as potential energy. The position, arrangement, or state of the object or substance determines how much energy is stored.

Potential energy PE = mgh

Where, the mass in kilograms is denoted by m, the acceleration due to gravity is denoted by the letter g. and the height in meters is denoted by h.

Step 1: Finding the potential energy of the loaded cart

Loaded cart mass m = 3.0 kg

Seat top height h = 0.45 m

Potential energy of the loaded cart = ?

Acceleration due to gravity g = 9.8 m/s^2

PE = mgh

PE = (3.0 kg) * (9.8 m/s^2) * (0.45 m)

PE = 13.23 kg m^2/s^2

Hence, potential energy of the loaded cart PE = 13.23 joules