Question

what kind of acceleration is shown here? varies none positive negative

Explanation:

Step1: Recall acceleration - velocity relationship

Acceleration $a=\frac{\Delta v}{\Delta t}$, which is the slope of the $v - t$ graph.

Step2: Analyze the slope of the given graph

The $v - t$ graph has a negative slope (as velocity $v$ decreases with time $t$). Since acceleration is the slope of the $v - t$ graph, a negative slope implies negative acceleration.

Answer:

negative