what is the vertical velocity????

Question

At t = 0, an object is projected with a speed v0 = 45 m/s at an angle q0 = 30.4° above the horizontal. The axes on the diagram show the x and y directions that are to be considered positive.
its horizontal velocity is 38.81m/s
at t = 10 s

Answer 1

vertical speed at t=0
v0=sin30.4*45=22m/s

v=v0+a*t=22-9.81*10=-75m/s

Answer 2

Hi. Try sin 30.4 times 45. This should be the initial vertical velocity and may guide you to your answer. (I usually don't answer, just hint. Sorry.)

Answer 3

The rate of upward or downward motion of air passing through a given pressure level.