Question

coefficient of friction between the tyer and the wet road is: a) 0.2 b)0.6 c)0.8 d)1​

Answer 1

Answer:

Let v be the maximum speed of the car which is moving around a curve of radius 40 m and it is moving with this velocity without slipping. So, frictional force = centripetal force

μmg=

R

mv

2

v

2

=μgR

v

2

=0.5×40×9.8

v

2

=196m/s

v=14m/s

μ is coefficient of friction between car and tyre.

R is the radius of curve

v is the velocity of a car

Answer 2

Your answer is 0.6 maybe