Question

Im doing some physics and i cant figure out this problem... A karate expert breaks a stack of bricks with his bare hand. If the force applied is 520 newtons and the impact time is 0.5 × 10ȳ seconds, what is the value of impulse?

Answer 1

\[J=\Delta p\]=\[p2-p1=F\Delta t=520*50s =\]

that is if your time is

\[.5*10^3\]
if its \[.5*10^{-3}\]
\[.0005

Answer 2

i think it's supposed to be .0005 because 50 seconds is a huge impact time, it's usually less than a second

Answer 3

this is why they show the impacts of sports and other stuff in slow motion... it's way to hard to determine the impact timing