An athlete kicks a soccer ball with a velocity of 24.2 m/s at a 26 degree angle from the ground. Find the horizontal component of the starting velocity. (Vx)

I got was 23.71 or if you round it it'd be 23.72 but it still says that I'm wrong

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During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m