A particle is projected up with a velocity of vo = 10 m/s at an angle of θo = 600 with horizontal onto an inclined plane. The angle of inclination of the plane is 300. The time of flight of the particle till it strikes the plane is (take g = 10 m/s2)

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123s

32s

23s

2 s

answer is C.

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Detailed Solution

T= 2usinα-θg cosθ = 2×10×1/210 ×3/2 =23 s

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