Asked by hilde
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
Answers
Answered by
bobpursley
Assume the coefficent of friction is the same.
F=mu*Normal force=ma
a= normalforce*mu/mass
Vf^2=Vi^2+2ad
solve for mu on the level road, knowing normalforce is mg.
Then, knowingmu, look at the slope
normal force=mg*SinTheta
Vf^2=Vi^2+2mgSinTheta*mu/m * d
solve for distance.
since Theta is a small angle, SinTheta=TanTheta= 1/10
F=mu*Normal force=ma
a= normalforce*mu/mass
Vf^2=Vi^2+2ad
solve for mu on the level road, knowing normalforce is mg.
Then, knowingmu, look at the slope
normal force=mg*SinTheta
Vf^2=Vi^2+2mgSinTheta*mu/m * d
solve for distance.
since Theta is a small angle, SinTheta=TanTheta= 1/10
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.