1. As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.26 s.(a) What is the acceleration of the baseball?(b) What is the acceleration in g’s?2. A child sits on the edge of a spinning merry-go-round that has a radius of 1.6m. The child’s speed is 5 m/s. What is the child’s acceleration?3. During a NASCAR race a car goes 90 m/s around a curved section of trackthat has a radius of 240 m. What is the car’s acceleration?4. Initially stationary (the train starts at rest), a train has a constant accelerationof 0.7 m/s2.(a) What is its speed after 40 s?(b) What would be the total time it would take to reach a speed of 49 m/s?5. A rock is dropped off the side of a bridge and hits the water below 7.7 s later.(a) What was the rock’s velocity when it hit the water?speeddirection(b) What was the rock’s average velocity as it fell?speeddirection(c) What is the height of the bridge above the water?7. During takeoff, an airplane goes from 0 to 72 m/s in 10 s.(a) What is its acceleration?(b) How fast is it going after 4 s?(c) How far has it traveled by the time it reaches 72 m/s?8. A high-performance sports car can go from 0 to 100 mph in 9.4 s. (Assume thecar travels in the positive direction. Indicate the direction with the sign of youranswer.)(a) What is the car’s average acceleration (in SI units; meter-kilogramsecond)?(b) The same car can come to a complete stop from 27 m/s in 5.9 s. What is itsaverage acceleration?9. A passenger jet flies from one airport to another 1,373 miles away in 3.0 h.Find its average speed in the mks system of units.10. What are the "basic" or "fundamental" physical quantities? (Select all thatapply.)timedistanceareamassspeed11. List the physical quantities identified in this chapter. From which of thefundamental physical quantities is each derived? Which of them are vectors, andwhich are scalars?12. What is the distinction between speed and velocity? Describe a situation inwhich an object’s speed is constant but its velocity is not.13. What does the slope of a distance-versus-time graph represent physically?areaaccelerationvelocitydisplacementtime
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more