Hi all, I need help double-checking my work. Thanks. 1. A particile starts at th

Question

Hi all, I need help double-checking my work. Thanks.

1. A particile starts at the origin. Below is a graph of velocity vs. time. What is the approximate position at t=3 sec?

The choices are blurry. My bad. It's 18 m; 12 m; 3 m; or 8m.

Velocity = Displacement/Time. So, I did 6 m/s = d/3 s, which gives me d = 18 m.

2.

I put zero because the displacement is 0. Is it not?

3.

It is to the right because it's positive. I narrowed it down to the last two. I'm predicting that speed is changing while acceleration is constant.

A starts A runner runs around a circular track of radius 100m once in 3 minutes What is the average velocity of the runner? In the velocity versus time graph below, what is happening in the first 3 seconds of the

Explanation / Answer

1.) d = 6*(3 - 1) = 12m

2.) is correct

3.) is correct

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