- #1

newgirl

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**Need help with Vertical Velocity! I have an exam tomorrow >.<**

I went to a tutor yesterday to get it all worked out, but I forgot to write down D in my notes! How do I solve for D? I have the answer, but no equation to work it.

You jump horizontally with a speed of 2.7 m/s off a diving board that is 2.6 meters above the water. (Neglect air resistance and use g = 9.8 m/s2)

(a) How long are you in the air?

0.73 s

(b) How far away from the diving board (horizontally) do you hit the water?

1.971 m

(c) What is your horizontal speed when you hit the water?

2.7 m/s

(d) What is your vertical velocity when you hit the water? (Define up as the positive vertical direction).

-7.252 m/s

I am thinking D is solved with Dy=Voy T + (1/2)Ay T^2=Voy T- (1/2)gt^2. I just figured out that the y's and the x's are referring to vertical and horizontal, but I am slightly confused on the process.