# A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. What is the car's average acceleration?

##### 1 Answer

#### Explanation:

The acceleration of an object can be calculated based on the formula

where

#a= "acceleration"# #v= "final velocity"# #u= "initial velocity"# #t= "time taken"#

Here

From the question

#u = "0 m/s"# #v= 19 4/9 \ "m/s"# #t = "7 s"#

So