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A paritcle is projected with velocity (6...

A paritcle is projected with velocity `(6hati+5hatj+8hatk)ms^(-1)` from a vertical tower of height 10m. If the y-axis is vertical up find time of flight (in sec).

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Verified by Experts

The correct Answer is:
2
`-10=5t-(1)/(2)xx10xxt^(2)`
`t^(2)-t-2=0 rArr t=2`
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