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

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SUMMARY

The discussion centers on calculating the time it takes for a ball thrown at a speed of 31 m/s and an angle of 40.0° to reach a wall located 22.0 m away. The initial calculation of 0.96 seconds was incorrect due to a miscalculation in the final division. The correct horizontal component of the velocity is 23.7 m/s, leading to a time of approximately 0.93 seconds to reach the wall, calculated by dividing the distance (22 m) by the horizontal velocity (23.7 m/s).

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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.

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(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?
 

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

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