Answer :
Final answer:
The work done against gravity in lifting the box is approximately 73.5 J.
Explanation:
To calculate the work done against gravity, we need to use the formula:
Work = Force × Distance × cos(angle)
In this case, the force is the weight of the box, which can be calculated using the formula:
Force = mass × acceleration due to gravity
So, the work done against gravity is:
Work = (5 kg) × (9.8 m/s^2) × (1.5 m) × cos(180°)
Simplifying this equation gives us:
Work ≈ 73.5 J
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