Atruck traveling at 75 mi/h has a braking efficiency of 70%. the coefficient of road adhesion is 0.80. ignoring aerodynamic resistance, determine the theoretical stopping distance on a level grade.

100.36 m

Explanation:

Given

speed of truck

Braking efficiency of 70 %

i.e. braking declaration will be 70 % of frictional force

effective acceleration

using equation of motion

where v=final velocity

u=initial velocity

a=acceleration or declaration

s=displacement

here v will be zero

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.