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[" 20) A projectile is thrown with a vel...

[" 20) A projectile is thrown with a velocity of "10ms^(-1)" at an angle of "],[60^(@)" with horizontal.The interval between the moments when "],[" speed is "sqrt(5)gm/s" is (Take,"g=10ms^(-2)" ) "],[[" (a) "18," (b) "3s],[" (c) "2s," (d) "4s]]

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A projectile is thrown with a velocity of 10 ms^(-1) at an angle of 60^(@) with horizontal. The interval between the moments when speed is sqrt(5g) m//s is (Take, g = 10 ms^(-2))

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