On a dry road, a car with good tires may be able to brake with a constant deceleration of 3.97 m/s². (a) How long does such a car, initially traveling at 20.7 m/s, take to stop? (b) How far does it travel in this time?

(a)

Number

Type your answer for part (a) here

Units

Choose your answer for part (a) here This answer has no units (degrees)mkgsm/sm/s^2NJWN/mkgm/s or NsN/m^2 or Pakg/m^3gm/s^3times

(b)

Number

Type your answer for part (b) here

Units

Choose your answer for part (b) here This answer has no units (degrees)mkgsm/sm/s^2NJWN/mkgm/s or NsN/m^2 or Pakg/m^3gm/s^3times