Figure P1.10 shows the motion diagram for a horse galloping in one direction along a str...

Figure P1.10 shows the motion diagram for a horse galloping in one direction along a straight path. Not every dot is labeled, but the dots are at equally spaced instants of time. What is the horse’s velocity

a. During the first ten seconds of its gallop?

b. During the interval from 30 s to 40 s?

c. During the interval from 50 s to 70 s?