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A 1 kg mass is lifted to a height of 5 m. How much work is done against gravity?
A 1 kg mass is lifted to a height of 5 m. How much work is done against gravity?
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Q1
A 1 kg mass is lifted to a height of 5 m. How much work is done against gravity?
5 J
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Work done against gravity = mgh = 1 * 9.8 * 5 = 49 J.
Questions & Step-by-step Solutions
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Q: A 1 kg mass is lifted to a height of 5 m. How much work is done against gravity?
Solution:
Work done against gravity = mgh = 1 * 9.8 * 5 = 49 J.
Steps: 7
Show Steps
Step 1: Identify the mass being lifted. In this case, the mass is 1 kg.
Step 2: Identify the height to which the mass is lifted. Here, the height is 5 m.
Step 3: Identify the acceleration due to gravity. On Earth, this is approximately 9.8 m/s².
Step 4: Use the formula for work done against gravity, which is Work = mass (m) * gravity (g) * height (h).
Step 5: Plug in the values into the formula: Work = 1 kg * 9.8 m/s² * 5 m.
Step 6: Calculate the result: 1 * 9.8 * 5 = 49 J.
Step 7: Conclude that the work done against gravity is 49 Joules.
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