A car initially traveling at 27.7 m/s undergoes a constant negative acceleration of magnitude 2.00 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.340 m

The car's velocity at time t is given by

It comes to a stop when v = 0, which happens when

or after about 13.9 s.

In this time, the car travels a distance x given by

or about 192 m.

In one complete revolution, each tire covers a distance equal to its circumference,

or about 2.14 m.

This means each tire will complete approximately 192/2.14 ≈ 90 revolutions.

answer///isobars;