Super! You can see that from \(4 \, \mathrm{s}\) to \(6 \, \mathrm{s}\), Jerry has covered the maximum distance. So, his speed of \(10 \, \mathrm{m/s}\) was the maximum. During the first and last \(2\) seconds, his speed was only \(2.5 \, \mathrm{m/s}\).

An object's velocity tells us how quickly its position is changing. But, as we just saw, velocity and speed can

Just like velocity tells us how fast an object's position is changing,

**themselves change**. Jerry's velocity increased, and then decreased (ignore negative value of the velocity).Just like velocity tells us how fast an object's position is changing,

**acceleration**tells us how fast the velocity itself is changing. Mathematically, \(\text{Acceleration} = \frac{\text{Change in Velocity}}{\text{Time}}\).