# Dave is riding on a straight path. After 5 s, his speed is 3.0 m/s. After 7 s, his speed is 5.0 m/s. After 10 s, speed is 7.0 m/s. What was his acceleration from 5 s to 10 s?

##### 1 Answer

The acceleration is

#### Explanation:

Acceleration is the rate of change of velocity.

His acceleration from

The change in velocity

It changes by

Hence the acceleration is