Question

A projectile is launched at t=$0$, with velocity u at an angle with the horizontal

Answer 1

Projectile is an object projected with some velocity and its initial direction of motion makes an angle α ( α >0 and α <90°) with horizontal direction.

Projetile moves in a two dimensional plane so that at given time it has vertical displacement as well as horizontal displacement from the point of projection.

Let the projetion velocity be u and let it make an angle α with horizontal x-direction

velocity component :-$u_x=ucos\alpha and{u}_y=usin\alpha$

displacement component :- $x=ucos\left(\alpha \right)\ast tandy=usin\left(\alpha \right)\ast t-\frac{1}{2}\ast g\ast t^2$

$y=bx-c{x}^2$