Question

a swimmer makes 31.5 laps in the pool in 1.5 determine the total distance, total displacement, and average velocity.

Answer 1

You need to provide the pool length and the units that go with the 1.5 number.

When computing the displacement and velocity, remember that, because of the 0.5 laps at the end of 31.5, he will be in the middle of the pool, and will only be a half pool length from where he started.