Question 4Two children start at one end of a street, the origin, run to the other end, then head back. On the way back Joan is ahead of Mike.Which statement is correct about the distances run and the displacements from the origin?A) Joan has run a greater distance and her displacement is greater than Mike's.Mike has run a greater distance and his displacement is greater than Joan's.Joan has run a greater distance, but her displacement is less than Mike's.Mike has run a greater distance, but his displacement is less than Joan's.E) Mike has run a shorter distance, and his displacement is less than Joan's.

Displacement can be defined as the shortest distance from the initial position to the final…

Answered: Question 4 Two children start at one…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A ball is thrown up with an initial speed of 43.0 m/s a) what is the ball's speed at its highest position? b) how long does it take the ball to reach its highest position? c) what is the magnitude of the ball"s acceleration at its highest position? d) what is the distance between the initial and highest position of the ball? e) what is the ball's speed when it comes back to its initial position?
2. Juliet is trying to determine the height of her balcony from the base of the building without leaving her balcony. To do this, she asks Romeo for advice. Using concepts of physics that we have discussed in class, what advice should Romeo give to Juliet? Hint: Assume that Juliet has access to a timer and her reacting time to start and stop the timer is zero. Also, she has an object that she can drop and there is no air resistance. Clearly, explain your answer.
An object moves so that its position depends on time as x=−10m+(5m/s)t+(2.5m/s2)t2. Which statement below is not true? a) The object never stops moving. b) The object first moves in the negative direction and then in the positive direction c) The object is accelerating d) The speed of the object is always increasing Which answer is correct and why?
Please help! Required information: A cheetah can accelerate from rest to 52.9 m/s in 2.00 s. Assume that the acceleration is constant over the time interval. a) What is the magnitude of the acceleration of the cheetah? b) What is the distance traveled by the cheetah in these 2.00 s? c) A runner can accelerate from rest to 7.30 m/s in the same time, 2.00 s. What is the magnitude of the acceleration of the runner? d) A runner can accelerate from rest to 7.30 m/s in the same time, 2.00 s. By what factor is the cheetah’s average acceleration magnitude greater than that of the runner?
A skier starts from rest down a slope 500.0 m long. The skier accelerates at a constant rate of 2.00 m/s squared. • a. Find the velocity of the skier at the bottom of the slope. Do this by deriving two separate equations for time and then making the expressions equal to each other to solve for the second velocity. • b. Using the distance down the hill, and the two velocities, determine the time it took to descend the hill.
Can you have a positive or negative velocity but a position with the opposite value (negative or positive)? Explain why or why not. (Explain clear and not too hard to understand) Can you have zero velocity but a positive or negative position? Give an easy example.
8
Question 8 of 10 View Policies Current Attempt in Progress -/1.25 E ! A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 6.1 m/s²; after 3.7 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant velocity of 68.1 m/s overtakes and passes the entering car. The entering car maintains its acceleration. How much time is required for the entering car to catch up with the other car? \t= i eTextbook and Media GO Tutorial Save for Later Last saved 1 second ago. Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes. M B Attempts: unlimited Submit Answer

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