Question:
The work done to lift a 60 kg mass to a height of 5 m from the ground is (g = 10 m/s\(^2\))
The work done to lift a 60 kg mass to a height of 5 m from the ground is (g = 10 m/s\(^2\))
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To calculate the work done against gravity, use the formula \( W = mgh \), where \( m \) is the mass, \( g \) is the gravitational constant, and \( h \) is the height.
Updated On: Apr 7, 2026
- 3000 J
- 750 J
- 1250 J
- 6000 J
- 4500 J
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The Correct Option is A
Solution and Explanation
The work done to lift an object against gravity is given by the formula:
\[
W = mgh
\]
Where:
- \( m = 60 \, \text{kg} \) (mass)
- \( g = 10 \, \text{m/s}^2 \) (acceleration due to gravity)
- \( h = 5 \, \text{m} \) (height)
Substituting the values:
\[
W = 60 \times 10 \times 5 = 3000 \, \text{J}
\]
Thus, the correct answer is (A) 3000 J.
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