Question

a car is going around an unbanked curve at the recommended speed of 11 m/s .if the radius of curvature of the path is 25m nad the coefficient of static between the rubber and the road is ​

Answer 1

Answer:

μ = 121/250

Explanation:

When you are doing circular motion on unbanked roads, you must consider the following to be able to solve the problem quickly and effectively:

• Forces acting on the car must be balanced in the outward direction, so that the car moves in a circular path and doesn't accelerate outward
• Centripetal force and frictional force must be equated when no banking of roads is involved

So, in the problem, here is the method to solve it:

Force must be 0 in outward direction, so centripetal force must be equal to frictional force inward.

So,

μmg = $mv^{2}/r$

μg = $v^{2}/r$

Input the values given:

μ x 10 = (121)/25

μ = 121/250

Hope it helps!