Question

force of friction acting on a car on different roads in the increasing order will be:
a) tar, concrete, gravel, mud roads
b) mud, tar, concrete, gravel roads
c) concrete, tar, gravel, mud
d) gravel, mud, tar, concrete
Over at another enquiry, the answer to the same question is given to be B but, I think tar roads offer more friction than concrete roads. Which is the correct option?

Answer 1

Dear Student ,
Here in this case look the force of friction in increasing order will be :
(b) mud , tar , concrete , gravel roads .
Regards