Question

determining the acceleration of the cart
in the lab, you looked at speed - time graphs to determine the acceleration of the cart for each of the three fan speeds.
what was the acceleration of the cart with low fan speed? cm/s²
what was the acceleration of the cart with medium fan speed? cm/s²
what was the acceleration of the cart with high fan speed? cm/s²

Explanation:

Step1: Recall acceleration formula

Acceleration $a=\frac{\Delta v}{\Delta t}$, where $\Delta v$ is the change in velocity and $\Delta t$ is the change in time. On a speed - time graph, acceleration is the slope of the graph.

Step2: Identify data on graph

You need to find two points $(t_1,v_1)$ and $(t_2,v_2)$ on the speed - time graph for each fan speed. Then calculate $a=\frac{v_2 - v_1}{t_2 - t_1}$. Since no actual graph data is provided, we can't do the numerical calculation. But the general method is as above.

Answer:

No data to calculate, so no answer can be provided.