Answer :

u = Velocity of projection

Ɵ = Angle of Projection

= Initial velocity along x axis

= Initial velocity along y axis

= Acceleration along x axis

= Acceleration along y axis

Using equations of motion:

At any instantaneous time, ‘t’ the angle that v makes with the horizontal is.

So, …3

Given that v makes angle 90° with u,

…4

Now,

So,

…5

Now,

(From 5) …6

Similarly,

(From 5)

…7

Now, ..8

(Putting 6,7 in 8)

…9

Putting 5 in 9, we get:

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