The object whose motion is shown on the following graph is?

Answer

Speeding up

The graph shown is the graph of velocity against time. The velocity is increasing with time. The quantity that describe that time of motion where velocity increases with time is called acceleration.

Since the graph is straight line the the acceleration is constant.

From the choices the motion is speeding up.

it should be -8.6 cm hope this out

whichever one it is, it's definitely not one that you included on the list you provided.