What is the work done against gravity when a 10 kg block is lifted vertically upward through a height of 5 m? (g = 9.8 m...

Type: MCQ • Marks: 1

What is the work done against gravity when a 10 kg block is lifted vertically upward through a height of 5 m? (g = 9.8 m/s²)

A. 98 J

B. 50 J

C. 49 J

D. 490 J

Explanation

Work W = mgh = 10 kg × 9.8 m/s² × 5 m = 490 J.

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Class 9th Science (MCQ)

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