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