JEE Main 2019 — Physics solution | Fundamenthol

JEE Main2019Physics

Q.

A ball is thrown upward with an initial velocity V₀ from the surface of the earth. The motion of the ball is affected by a drag force equal to m $γ$ v² (where m is mass of the ball, v is its instantaneous velocity and $γ$ is a constant). Time taken by the ball to rise to its zenith is :

A
$\frac{1}{γ g} sin^{- 1} (\frac{γ}{g} v_{0})$
B
$\frac{1}{γ g} I n (1 + \frac{γ}{g} v_{0})$
C
$\frac{1}{γ g} t a n^{- 1} (\frac{γ}{g} v_{0})$
D
$\frac{1}{2 γ g} t a n^{- 1} (\frac{2 γ}{g} v_{0})$

Solution

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