All surfaces shown in the figure are frictionless. A block of mass 5 kg is kept on a wedge of mass 20 kg. If the block remains stationary w.r.t. wedge, the magnitude of force F is (g = 10 m/s2)

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All surfaces shown in the figure are frictionless. A block of mass 5 kg is kept on a wedge of mass 20 kg. If the block remains stationary w.r.t. wedge, the magnitude of force F is (g = 10 m/s²)

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250 N

20 N

200 N

50 N

answer is A.

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Detailed Solution

$a = gtanθ So F = (m + M) a = 25 \times gtan 45^{\circ}; F = 250 N$

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