Question

3. An athlete swims from the north end to the south end of a 50.0 m pool

in 20.0 s and makes the return trip to the starting position in 22.0 s.
a. What is the average velocity for the first half of the swim?
b. What is the average velocity for the second half of the swim?
c. What is the average velocity for the roundtrip?

Answer 1

a.2.5 m/s

b.2.27 m/s

c.2.385 m/s

Step-by-step explanation:

velocity=displacement/time

a.50/20=2.5 m/s

b.50/22=2.27 m/s

c.average velocity=total velocity/2

=2.27+2.5/2

=4.77/2

=2.385 m/s