Question

You kick a soccer ball with a speed of 18 m/s at an angle of 43°. How long does it take the ball to reach the top of its trajectory?

Answer 1

 It will of course depend on what planet you are playing on -- 
but assuming Earth: 
v = v0 - g t 
0 = 18 m/s sin(43 deg) - (9.81 m/s^2) t 
t = 18 sin(43 deg)/(9.81) seconds = 1.25 s

Answer 2

Answer:

1.25 seconds

Explanation:

A P E X