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Bezzdna [24]
3 years ago
15

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

ration
Mathematics
1 answer:
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

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