Question

INTRODUCTORY PROBLEMS Note: Some problems require vector algebra (see Chapter 3). 1. A runner completes 6½ laps around a 400 m track during a 12 min (720 s) run test. Calculate the following quantities: a. The distance the runner covered b. The runner's displacement at the end of 12 min c. The runner's average speed d. The runner's average velocity e. The runner's average pace (Answers: a. 2.6 km; b. 160 m; c. 3.6 m/s; d. 0.22 m/s; e. 4.6 min/km)

          INTRODUCTORY PROBLEMS

Note: Some problems require vector algebra (see Chapter 3).
1. A runner completes 6½ laps around a 400 m track during a 12 min (720 s) run test. Calculate the following quantities:
a. The distance the runner covered
b. The runner's displacement at the end of 12 min
c. The runner's average speed
d. The runner's average velocity
e. The runner's average pace
(Answers: a. 2.6 km; b. 160 m; c. 3.6 m/s; d. 0.22 m/s; e. 4.6 min/km)

INTRODUCTORY PROBLEMS

Note: Some problems require vector algebra (see Chapter 3).
1. A runner completes 6½ laps around a 400 m track during a 12 min (720 s) run test. Calculate the following quantities:
a. The distance the runner covered
b. The runner's displacement at the end of 12 min
c. The runner's average speed
d. The runner's average velocity
e. The runner's average pace
(Answers: a. 2.6 km; b. 160 m; c. 3.6 m/s; d. 0.22 m/s; e. 4.6 min/km)

Added by Latoya R.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

02/04/2023

Step 1

We can find the runner's velocity by using the equation v= at2, where a is the runner's displacement at the end of 12 min. We can find the runner's pace by using the equation p= v/t, where v is the runner's velocity and t is the time. Show more…

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INTRODUCTORY PROBLEMS Note: Some problems require vector algebra (see Chapter 3). 1. A runner completes 6½ laps around a 400 m track during a 12 min (720 s) run test. Calculate the following quantities: a. The distance the runner covered b. The runner's displacement at the end of 12 min c. The runner's average speed d. The runner's average velocity e. The runner's average pace (Answers: a. 2.6 km; b. 160 m; c. 3.6 m/s; d. 0.22 m/s; e. 4.6 min/km)