A small block of mass 0.1 kg lies on a fixed inclined plane PQ which makes an angle θ with the horizontal. A horizontal force of 1 N acts on the block through its center of mass as shown in the figure. The block remains stationary if (take g = 10 m/s 2 )
Text Solution
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CHECK THE SOLUTION.
(a, c)
Sol.
f = 0, If sin θ = cos θ ⇒ θ = 45°
f towards Q, sin θ > cos θ ⇒ θ > 45°
f towards P, sin θ < cos θ ⇒ θ < 45°
f = 0, sin θ = cos θ ⇒ θ = 45°
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