Question

a golf ball is hit off the ground at an angle of pi/6 and travels 400 feet. How long was it in the air???

Answer 1

V = 400/(t*cos(pi/6))

(g/(2*sin(pi/6)))*t = V

(g/(2*sin(pi/6)))*t =400/(t*cos(pi/6))

Answer 2

t^2 = (2*400*tan(pi/6))/g

Answer 3

edited: left out a parenthesis.)