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A particle is projected up an inclined with initial speed v = 20 m/s at an angle $θ = 30^{0}$ with the plane. The component of the velocity perpendicular to the plane when it strikes the plane is

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103 m/s

10 m/s

53 m/s

data is insufficient

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detailed solution

Correct option is B

Component of velocity perpendicular to plane remains the same (in opposite direction).usinθ = 20sin300 = 10 m/s

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A particle is projected up an inclined with initial speed v = 20 m/s at an angle θ = 300 with the plane. The component of the velocity perpendicular to the plane when it strikes the plane is

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A particle is projected up an inclined with initial speed v = 20 m/s at an angle $θ = 30^{0}$ with the plane. The component of the velocity perpendicular to the plane when it strikes the plane is