Question

The work done to lift a 60 kg mass to a height of 5 m from the ground is (g = 10 m/s\(^2\))

• A. 3000 J
• B. 750 J
• C. 1250 J
• D. 6000 J
• E. 4500 J

Hint:

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.

Answer 1

The Correct Option is A

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.