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Physics 1010 Module 2 Homework
OpenStax College Physics, Chapter 2 Problems
- Find the following for path A in the figure shown below:
a. The distance traveled.
b. The magnitude of the displacement from start to finish.
c. The displacement from start to finish.
- Using the same visual from problem #1, find the following for path C:
a. The distance traveled.
b. The magnitude of the displacement from start to finish.
c. The displacement from start to finish.
- The average radius of Earth’s path around the Sun is 1 * 10^11 m.
a. Calculate Earth’s average speed relative to the Sun.
b. What is its average velocity over a period of one year?
- A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation.
a. Calculate the average speed of the blade in the helicopter’s frame of reference.
b. What is its average velocity over one revolution?
- On May 26, 1934, a streamlined, stainless steel diesel train called the Zephyr set the world’s nonstop long-distance speed record for trains. Its run from Denver to Chicago took 13 hours, 4
minutes, 58 seconds, and was witnessed by more than a million people along the route. The total distance traveled was 1633.8 km. What was its average speed in km/hr AND m/s?
A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?
Dr. John Paul Stapp was a U.S. Air Force officer who studied the effects of extreme deceleration on the human body. On December 10, 1954, Stapp rode a rocket sled, accelerating from rest to a top speed of 282 m/s (1015 km/hr) in 5.00 s, and was brought jarringly back to rest in only 1.40 s!
a. Calculate his acceleration, and express this in multiples of g (9.80 m/s^2 ) by taking its ration to the acceleration of gravity.
b. Calculate his deceleration, and again, express this in multiples of g (9.80 m/s^2 ) by taking its ration to the acceleration of gravity.
