Answer :
Final answer:
The potential energy stored in a 5 kg ball placed 3 m above the ground, assuming a gravitational pull of 9.8 m/s², is calculated to be 147 Joules.
Explanation:
The potential energy stored in an object is calculated using the formula: Potential Energy = mass * gravity * height. In this case, the mass of the ball (m) is 5 kg, the height from the ground (h) is 3 m, and the acceleration due to gravity (g) is approximately 9.8 m/s².
Therefore, the potential energy (PE) is calculated as follows: PE = m * g * h = 5 kg * 9.8 m/s² * 3 m = 147 J.
So, the potential energy of the ball when it is placed 3 meters above the ground is 147 Joules (Option B).
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