1.

An equation relating to stability of an aeroplane is (dv)/(dt)=gcosalpha-kv, where v is the velocity and g, k,alpha are constantts. If v=0. at t=0, velocity is

Answer»

`(gcosalpha)/(K)(1-e^(-KT))`
`(-gcosalpha)/(k)(1-e^(-kt))`
`(gcosalpha)/(k)(1-e^(kt))`
`(-gcosalpha)/(k)(1-e^(kt))`

ANSWER :A


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