Given:
Mass of object, m = 2 kg
Distance, h = 5 m
To determine:
The potential energy and work done
Explanation:
Step 1: The potential energy of the object is given as:
PE = mgh
m = mass of the object, g = acceleration due to gravity = 9.8 m/s2; h = height
PE = 2 kg * 9.8 ms-2 * 5 m = 98 kgm²s⁻² = 98 J
Step 2: The work done by gravity can be expressed as:
W = Force * distance = F*h
F = mg = 2 * 9.8 = 19.6 N
W = 19.6 * 5 = 98 J
Ans: The potential energy and work done = 98 J
