posted by john on .
The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop.
(a) What is the time interval during which a vaulter who has just cleared a height of 6.9 m slows to a stop?
(b) What is the time interval if instead the vaulter is brought to rest by a 19.2-cm layer of sawdust that compresses to 4.6 cm when he lands?
have no idea how to solve this please help
ye i don't understand ho your explaining with the other guy who posted it. i don't know where you get any of your number from
i don't get this either please help me thanks.
i clicked this link and the numbers i see are different than the question. please help
what is energy?