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A particle is projected from point P w...

A particle is projected from point P with velocity `5 sqrt(2)``ms^(-1)` prependicular to the surface of a hollow right angle cone whose axis is vertical . It collides at Q normally. The time of the flight of the particle is .

Text Solution

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`t=u/(g sin theta)=(5sqrt(2)xxsqrt(2))/10=1sec`
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