- #1

- 58

- 2

- Homework Statement
- A car is travelling at 120 km/h, when the driver sees a herd of cows on the road ahead and slams on the brakes. The performance of the car’s brakes is such that the car comes to a stop in a distance D meters. Assuming that the acceleration of the car under braking is independent of the car’s speed, what distance would the car require to come to a stop if it were travelling at 40 km/h instead?

- Relevant Equations
- v=d/t, x=ut+1/2at^2

Would we assume that the deceleration of both instance are the same?