Question

Alexis is in her Toyota Camry and trying to make a turn off an expressway at 19.0 m/s. The turning radius of the level curve is 35.0 m. Her car has a mass of 1240 kg. Determine the acceleration, net force and minimum value of the coefficient of friction which is required to keep the car on the road.

Answer 1

The solution is given below:

Step-by-step explanation:

The computation is shown below:

The acceleration is

= v^2 ÷ r

= 19^2 ÷ 35 m

= 10.3 m/s^2

According to the newton second law

F = mac

= 1240 kg (10.3 m/s^2)

= 12772 N

And,

frictional force (f) = \mu N

f = \mu (mg) = mac

\mu = ac ÷ g

= 10.3 m/s^2 ÷ 9.80 m/s^2

= 1.0510

In these ways it can be determined