A 1600 kg car, when on a rectilinear and horizontal stretch of road, can go from rest to 1...

A 1600 kg car, when on a rectilinear and horizontal stretch of road, can go from rest to 100 km/h in 5.5 s.

(a) Assuming that the car travels on such a road, estimate the average value of the force acting on the car for the car to match the expected performance.

(b) Recalling that the force propelling a car is caused by the friction between the driving wheels and the road, and again assuming that the car travels on a rectilinear and horizontal stretch of road, estimate the average value of the friction force acting on the car for the car to match the expected performance. Also estimate the coefficient of friction required to generate such a force.

Figure P5.12