From a position-time graph, velocity is:

$\overline{){\mathbf{v}}{\mathbf{=}}\frac{\mathbf{\u2206}\mathbf{x}}{\mathbf{\u2206}\mathbf{t}}}$

This means that velocity is the slope of the position-time graph.

**a)**

At t = 10s, the motion is in the interval, t = 0s and t = 20s

a) What is the bicyclist's velocity at t=10s?

Express your answer using two significant figures.

b) What is the bicyclist's velocity at t=25s?

Express your answer using two significant figures.

c) What is the bicyclist's velocity at t=35s?

Express your answer using two significant figures.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Position-Time Graphs & Velocity concept. You can view video lessons to learn Position-Time Graphs & Velocity. Or if you need more Position-Time Graphs & Velocity practice, you can also practice Position-Time Graphs & Velocity practice problems.

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Based on our data, we think this problem is relevant for Professor Peden's class at Brookhaven College.