Question: how to find vy in physics?
Answer: Horizontal velocity component: Vx = V * cos(α)
Vertical velocity component: Vy = V * sin(α)
Time of flight: t = 2 * Vy / g.
Range of the projectile: R = 2 * Vx * Vy / g.
Maximum height: hmax = Vy² / (2 * g)