a car advertisement states that a certain car can be accelerated from rest to 70 km/h in 7 seconds find the cars adverage accele

Question

3 years ago

15

ration

1 answer:

jekas [21] · Answer 1 · 2022-03-30T05:00:21+03:00

jekas [21]3 years ago

6 0

Step-by-step explanation:

v=70km/h

t=7 seconds

u=0

first change the unit km/h to m/s

1000km=1m

3600seconds=1h

v=70km/h ×1000km/3600s

v=19.44m/s

acceleration =final velocity(v)-initial velocity(u)/time

acceleration=19.44m/s-0m/s=19.44m/s

19.44/7=2.78 m/s