Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-numerical-Medium-Class 11

A block of mass 4 kg is released from rest at the top of a smooth inclined plane of height 5 m. What is the speed of the block at the bottom of the inclined plane? (Use g = 9.8 m/s²)

A

9.9 m/s

B

7.0 m/s

C

14.0 m/s

D

10.0 m/s

Correct Answer

Option A

Detailed Explanation

The speed of the block at the bottom is given by v = sqrt(2gh). Substituting g = 9.8 m/s² and h = 5 m, v = sqrt(2 * 9.8 * 5) = 9.9 m/s.

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