Question

In projectile motion problems how do I know what V and Voy are? Sometimes if Voy is 25 then Vy is the opposite at -25. Other times Vy is 0.

Answer 1

V and Voy? What do you mean? Like velocity of x, and velocity of y?

Answer 2

initial velocity Voy, ending velocity is Vy

Answer 3

It really depends on the problem.

Answer 4

ones with an equal parabola, sometimes Vy is 0 because sometimes the measurement is taken at the middle of parabola then time is multiplied by 2

Answer 5

Sorry, the question is too vague. With different problems where will be different ways of calculating the velocities.