Displacement, Velocity, and Acceleration

[ajab]

A dolphin leaps out of the water at an angle of 22.3 ° above the horizontal. The horizontal component of the dolphin's velocity is 8.53 m/s. Find the magnitude of the vertical component of the velocity.

I'm not getting the right ans. Any help?

 

[Undoubtedly0]

What have you tried so far to get your answer?

 

[WatermelonPig]

vx = vcos(theta)

vy = vsin(theta)

I'll leave the rest to you.