If the initial velocity in horizontal direction of a projectile is unit vector i ^ and the equation of…

If the initial velocity in horizontal direction of a projectile is unit vector i^ and the equation of trajectory is y=5x1-x. The y component vector of the initial velocity is _____  j^

(Take g=10 m s-2)

Solution

Given here, initial velocity, ux=1

Equation of trajectory, y=5 x1-x=5x-5x2

Now, differentiating the above equation, 

dydt=5dxdt-10xdxdt

For initial y-component of velocity

uy=dydtx=051=5

uy=5j^

Asked in: JEE Main 2022 (26 Jul Shift 1)

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