Golf Ball Flight: Solving for Initial Speed & Max Height

[wwommack]

Homework Statement

A golf ball with an initial angle of 33◦ lands ex-
actly 184 m down the range on a level course.
The acceleration of gravity is 9.81 m/s2 .
a) Neglecting air friction, what initial speed
would achieve this result? Answer in units of
m/s.
009 (part 2 of 2) 10.0 points
b) Find the maximum height reached by the
ball. Answer in units of m.

Homework Equations

acceleration formula

The Attempt at a Solution

I got A but can't get B.

 

[rock.freak667]

at the max height, the final vertical velocity =0

to y=v_xt -1/2gt^2