A dolphin leaps out of the water at an angle of 39.7 ° above the horizontal. The horizontal component of the dolphin's velocity is 8.11 m/s. Find the magnitude of the vertical component of the velocity.

I have like 5 of these and don't know where to start :( Can you please give me a model so I can do the rest! Thank you!

## Answers (1)

Don't know what the other 4 look like, but this is a trig problem.

Tan(theta) = vertical/ horizontal (this is the same as saying sin(theta)/cos(theta)

Tan(39.7) = vertical / 8.11 m/s

vertical = 8.11 * tan(39.7) = 8.11 * 6.733