Determine the potential energy of a 0.45 kg ball being held 1.2 m above the ground.A 0.54 JB 5.29 JC 6.35 JD 0.32 J
Question
Determine the potential energy of a 0.45 kg ball being held 1.2 m above the ground.A 0.54 JB 5.29 JC 6.35 JD 0.32 J
Solution
The potential energy (PE) of an object can be calculated using the formula:
PE = mgh
where: m = mass of the object (in kg) g = acceleration due to gravity (approximately 9.8 m/s² on Earth) h = height above the ground (in m)
Given in the problem: m = 0.45 kg g = 9.8 m/s² h = 1.2 m
Substituting these values into the formula gives:
PE = 0.45 kg * 9.8 m/s² * 1.2 m = 5.29 J
So, the potential energy of the ball is 5.29 Joules. The correct answer is B.
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