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in Physics by (74.3k points)

A triangular block of mass M with angles 30°, 60° and 90° rest with its 30° – 90° side on a horizontal table. A cubical block of mass m rests on 60° – 30° side. The acceleration which M must have relative to the table to keep m stationary relative to the triangular block is (assuming frictionless contact)

(a) g

(b) g / 2

(c) g / 3

(d) g / 5

1 Answer

+1 vote
by (70.0k points)
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Best answer

Correct option: (c) g / 3

Explanation:

Use result, a = gtan θ, a = gtan 30° = g / 3

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