An object is travelling in a straight line. The diagram is the speed-time graph for
the object.
At which labelled point is the object accelerating at a changing rate?
![An object is travelling in a straight line The diagram is the speedtime graph for the object At which labelled point is the object accelerating at a changing ra class=](https://us-static.z-dn.net/files/d44/75246635c11e74d2f5671c357928f295.png)