Question

Car 1 is traveling at a speed of 6 m/s (meters per second) with an acceleration of 3 m/s^2 (meter per second squared). Car 2 is traveling at a speed of 4 m/s and is accelerating at a rate of 8 m/s^2. Which car is travelling the fastest at that point in time? Why?

Answer 1

Answer:

CAR 1 is faster

Explanation:

                                                    v= final speed, u= initial speed

Accelaration= v-u/t

Accelaration/ v-u = t

CAR 1

Speed= 6m/s

Accelaration=3m/s²

3/ 6(v)-0(u)= t

3/6=t

0.5 secs is the time taken by CAR 1

CAR 2

Speed= 4m/s

Accelaration=8m/s²

8/ 4(v)-0(u)= t

8/4=t

2 secs is the time taken by CAR 2

CAR 1 time taken= 0.5 sec

CAR 2 time taken = 2 sec

Therefore CAR 1 IS faster than CAR 2

Hope it helps