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A body of mass m is thrown straight up w...

A body of mass m is thrown straight up with velocity `v_(0)(v_(0) lt lt v_(e))` Find the velocity `v` with which the body comes down if the air drag equals `kv^(2)`, where `k` is a positive constant and `v` is the velocity of the body.

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A body of mass m is thrown straight up with velocity `v_(0)(V_(0) lt lt v_(e))` Find the velocity `v'` with which the body comes down it the air drag equals `kv_(2)` where `k` is a positive constant and v is the velocity of the body.
`v = v_(0) //sqrt(1+ kv_(0)^(2)//mg)`.
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