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A 4 kg object is lifted to a height of 3 m. What is the increase in gravitationa
A 4 kg object is lifted to a height of 3 m. What is the increase in gravitational potential energy?
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A 4 kg object is lifted to a height of 3 m. What is the increase in gravitational potential energy?
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Increase in potential energy = mgh = 4 kg × 9.8 m/s² × 3 m = 117.6 J.
Questions & Step-by-step Solutions
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Q
Q: A 4 kg object is lifted to a height of 3 m. What is the increase in gravitational potential energy?
Solution:
Increase in potential energy = mgh = 4 kg × 9.8 m/s² × 3 m = 117.6 J.
Steps: 7
Show Steps
Step 1: Identify the mass of the object. In this case, the mass (m) is 4 kg.
Step 2: Identify the height to which the object is lifted. Here, the height (h) is 3 m.
Step 3: Identify the acceleration due to gravity. This is approximately 9.8 m/s² on Earth.
Step 4: Use the formula for gravitational potential energy, which is: Increase in potential energy = mgh.
Step 5: Plug in the values into the formula: Increase in potential energy = 4 kg × 9.8 m/s² × 3 m.
Step 6: Calculate the result: 4 × 9.8 × 3 = 117.6 J.
Step 7: Conclude that the increase in gravitational potential energy is 117.6 Joules.
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