Physics – 1.7.1 Energy | e-Consult
1.7.1 Energy (1 questions)
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Given:
- Mass (m) = 5.0 kg
- Height (Δh) = 30 m
- Acceleration due to gravity (g) = 9.8 m/s2
Equation: ΔEp = m g Δh
Calculation:
ΔEp = (5.0 kg) × (9.8 m/s2) × (30 m)
ΔEp = 1470 J
Answer: The change in gravitational potential energy of the stone as it falls 30 m is 1470 J. The units of the change in potential energy are Joules (J).