Which reacted faster, foot or hand?

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SUMMARY

The discussion centers on the comparative reaction times of the foot and hand, with participants referencing Newton's laws of motion to explain their reasoning. The consensus suggests that the hand reacts faster due to its proximity to the brain, aligning with Newton's first and second laws. Additionally, the conversation touches on measurement accuracy, noting that the distance from the foot to the ball is measured in centimeters while the ruler's position is measured in millimeters, highlighting the precision required in experimental setups. Lastly, the classification of both rockets and rulers as projectiles is questioned, indicating a need for clarity on their differing trajectories.

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  • Understanding of Newton's laws of motion (1st and 2nd)
  • Basic principles of projectile motion
  • Measurement techniques in physics experiments
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lostsummer
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Hi ! I have many questions and I did try to answers them, but I want to know if I am incorrect.
1) Which reacted faster, foot or hand ? try to use Newton explanation
I think the hand will react faster because it is closer to the brain... to send signal, but I am not sure how to explain that with Newton laws ( 1st and 2nd )

2) Why was the distance betweeen the top of the foot and the ball only measured to the nearest centimeter, while the place that caught the ruler was measure to nearest millimeter?
My guess is that with the ruler I could see the measurement and when the ball drop on the foot, the measurement is off by some millimeter.

3) Explain why the rocket and the ruler are both projectiles, despite their different paths.
this question I HAVE No idea.
 
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Hi lostsummer, welcome to PF. It would help us help you if you posted the statement of the problem with the underlying physical situation, instead of just the questions related to it. We are not mind readers, you know.
 

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