posted by anthony on .
still i cant find the normal force without mass of automabile. is normal force mass times gravity sin theta?
on a level road the stopping distance for an automobile is 35.0m for an initail speed of 90 km/hr what is the stopping distance of the same automobile on a simalr road with the slope 1:10
physics - bobpursley, Saturday, October 30, 2010 at 7:42am
Assume the coefficent of friction is the same.
solve for mu on the level road, knowing normalforce is mg.
Then, knowingmu, look at the slope
Vf^2=Vi^2+2mgSinTheta*mu/m * d
solve for distance.
since Theta is a small angle, SinTheta=TanTheta= 1/10