How Do You Calculate the Release Speed of a Basketball Shot?

[ctlpsl]

I am having a difficult time with the motion equation when the problem only includes an X value and an angle. The problem is to fin the velease speed of the ball when a player makes a shot to a basket when he is 6.02 m from the basket and the basket is 2.05 m above the floor. The player is 2.05 m tall and the launch angle is 25 degrees.

Attached is the method I used to do the calculation. I feel like I left something out.

 

[topsquark]

I can't see your work yet, but I got v0 = 8.78 m/s. Hope it helps. I'll check back later.

-Dan

 

[TolsePhy]

V0=8.78m/s is right if we take g=9.8m/s^2.

by using
x=V0 cos(theta) t
y=V0 sin(theta) t - 1/2 g t^2

solving these two equations, you'll get the answer! remember y=0 m