How Long Does It Take a Thrown Ball to Reach a Wall?

[B-80]

You throw a ball with a speed of 31 m/s at an angle of 40.0° above the horizontal directly toward a wall (Fig. 4-35). The wall is 22.0 m from the release point of the ball.

(a) How long does the ball take to reach the wall?

I got .96 seconds

31m/s Cos(40) = 23.7m/s

22m/23.7m/s = .96seconds right?

what did I do wrong?

 

[learningphysics]

everything is right except your final answer... 22/23.7 isn't 0.96.