Motion in A Straight Line

Question: An aeroplane is moving with horizontal velocity \[u\] at height \[h\]. The velocity of a packet dropped from it on the earth's surface will be (\[g\] is acceleration due to gravity)



1) \[\sqrt {{u^2} + 2gh} \]
2) \[\sqrt {2gh} \]
3) \[2gh\]
4) \[\sqrt {{u^2} - 2gh} \]
Solution: Explanation: Explanation
Motion under Gravity

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