To solve this there is this website that I found that helps
I am in middle school so I have no idea how to solve this
but
this website may help considering u are in high school and u
(hopefully mind u)
know how to solve this
so to get there u google
"whats impact speed"
and click on the first thing there the website is ehow
Uhhhh...you should have paid attention in class, just saying...
P = m*v
7.5 = m*15
m = 7.5/15 = 0.5 kg
