## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

The area between the velocity versus time graph and the x-axis is equal to the displacement. From t = 0.1 s to 0.3 s, the area under the velocity versus time graph is $\frac{1}{2}(0.8 ~m/s)(0.2 ~s)$ which is 0.08 m Therefore, during one beat of the heart, the blood moves approximately 8 cm