Home » 2011 » June » 29

Daily Archives: June 29, 2011


Problem from Force and Laws of motion

Can you solve this:

“A pole vaulter crossing the bar kinds on a foam cushion this downward speed as he first touches the cushion is 6.8 m/s,and he sinks 25cm , into the cushion before stopping. Estimate his acceleration while being stopped by the cushion”

This Question was posted by mimi mendoza

%d bloggers like this: