Yea i starting to get it now, so using the conservation of energy, the change in kinetic energy then equals the work done, and u take away the total work done by friction in the opposite direction (which i worked out to be 6.885N), then do the equation:
work=force(friction) * distance...
cool thanx!
But how do i work out the velocity? You need that to work out the kinetic energy right?
ke=0.5MV^2
as i have the mass, but don't know the distance or time so can't work out V?
hi
just a general question, i was setting up an experiment the other day where a spring launched a cube with a mass of 176g with 30N of force along a 85cm surface with friction coefficient of 0.27 (according to the teacher), i got the answer but that's because my class mates helped me in my...
hi
I am normally good at physics, but i am abit stuck, because i feel I am missing relevant information.
A 100g arrow is shot vertically from a bow whose effective spring constant is 500 n/m,If the bow is drawn 65cm before shooting the arrow, to what height does the arrow rise?
i...