Figure 4PositivePositivedirectiondirectionChrisRichardKatherinecrateRichard and Katherine watched as Chris did some workby pushing a crate. In Richard's coordinate system, thepositive direction pointed to the right. In Katherine'scoordinate system, the positive direction pointed to theleft. Chris and the crate moved, while Richard andKatherine remained at rest.Richard correctly calculated the work that Chris did onthe crate according to Richard's coordinate system. Hefound that Chris did positive 2700 joules. Katherinecorrectly calculated the work that Chris did on the crateaccording to Katherine's coordinate system. Whatvalue did Katherine calculate the work to be?O Zero joules.O Less than negative 2700 joules.O Negative 2700 joules.O Between zero an d negative 2700 joules.Between zero and positive 2700 joules.O More than positive 2700 joules.O Positive 2700 joules.

Answered: Image /qna-images/answer/58f1f2b9-12f3-40a1-b56d-1b1e25a85e62.jpg

Figure 4 Positive direction Positive direction Chris Richard Katherine crate Richard and Katherine watched as Chris did some work by pushing a crate. In Richard's coordinate system, the positive direction pointed to the right. In Katherine's coordinate system, the positive direction pointed to the left. Chris and the crate moved, while Richard and Katherine remained at rest.

Figure 4 Positive direction Positive direction Chris Richard Katherine crate Richard and Katherine watched as Chris did some work by pushing a crate. In Richard's coordinate system, the positive direction pointed to the right. In Katherine's coordinate system, the positive direction pointed to the left. Chris and the crate moved, while Richard and Katherine remained at rest.

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)...

See similar textbooks

Similar questions

A child does 354 J of work while pulling a box from the ground up to his tree house at a steady speed with a light rope. The tree house is 3.3 m above the ground. What is the mass of the box? Use g = 9.8 m/s2 Calculate to one decimal
Smooth Ramp P Side View Top View A small block of mass m starts from rest at the top of a frictionless ramp, which is at a height h above a horizontal tabletop, which also create angle 0, as shown in the side view above. The block slides down the smooth ramp and reaches point P with speed vo. After the block reaches point P at the bottom of the ramp, it slides on the tabletop guided by a circular vertical wall with radius R, as shown in the top view. The tabletop has negligible friction, and the coefficient of kinetic friction between the block and the circular wall is u. (a) Derive an expression for the acceleration of the block while its sliding down the ramp. Express your answer in terms of vo, m, h, and 0.
A cart of unknown mass is placed on a track. The cart is connected to a hanging weight of unknown mass via a string over a pulley and the hanging weight is allowed to drop to the floor. The following graph is collected. which of the following can I learn from the slope of this graph? a. mass of the hanging weight b. work done on the cart by the hanging mass c. velocity of the cart d. mass of the cart
Mark and David are loading identical cement blocks onto David’s pickup truck. Mark lifts his block straight up from the ground to the truck, whereas David slides his block up a ramp on massless, frictionless rollers. Which statement is true? a.Mark does more work than David. b.Mark and David do the same amount of work. c.David does more work than Mark. d.None of these statements is necessarily true because the angle of the incline isunknown. e.None of these statements is necessarily true because the mass of one block is not given.
Which of the statements below is true when you catch a baseball that comes at you horizontally? a. The work that you do is positive. b. The work that you do is negative. c. Work is not a vector and cannot be referred to as positive or negative. d. Work is a scalar product expressed in terms of magnitudes, so it is never negative. e. Work is expressed in terms of kinetic energy, which must be positive.
***IMAGE IS ATTACHED*** A bead slides without friction on a curved wire as shown in the figure above. If the height of point A relative to B is 0.45 m, then what is the speed of the bead when it reaches point B? Assume that the bead is at rest at point A. 2.1 m/s 3 m/s 9 m/s 1.5 m/s None of the above. Tries 0/2 How do the speeds at points B, D, F, and H compare? vB = vD = vF = vH vB = vF > vD = vH vB > vD > vF = vH None of the above. Tries 0/2 How do the speeds at points C, E, and G compare? vC = vE > vG vC = vE = vG vC > vE > vG None of the above.
You lift your backpack from the ground and moved forward to your car. Which of the following statements is true? A. Work is done on the backpack while lifting it and moving it forward. B. Work is done on the backpack while lifting it and but not when moving it forward. C. No work is done on the backpack while lifting it but work is done on it when moving it forward. D. No work is done on the backpack at all.
5. Mark and David are loading identical cement blocks onto David's pickup truck. Mark lifts his block straight up from the ground to the truck, whereas David slides his block up a ramp on massless, frictionless rollers. Which statement is true? A. Mark does more work than David B. Mark and David do the same amount of work C. David does more work than Mark D. None of these statements is neces sarily true because the angle of the incline is unknown E. None of these statements is neces sarily true because the mass of one block is not given 6. A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of 50.0 N. If a frictional force of 43 N acts on the wheelbarrow in a direction opposite to that of the worker, what net work is done on the wheelbarrow? A. 250 J B. 215 J C. 35 J D. 15 J E. 45 J 7. An athlete jumping vertically on a trampoline leaves the surface with a velocity of 8.5 m/s upward. What maximum height does she reach?A. 13 m B. 2.3 m C. 3.7…
Draw two pictures, one showing a cart at rest at the top of an incline, and another when it is rolling at the bottom of an incline. Draw velocity vectors on your sketch. Define your system. Label the distances, mass of the cart, and the kinetic energy of all objects in your system for both pictures.
An applied force holds a book against a wall a) draw free body diagram for the book on paper b) assuming boo slides up the wall such that its velocity increases state whether the work done by the following forces on book are positive, negative, or zero and why. - applied force - normal force - gravitational force - frictional force - net force
Loop the Loop (Figure 1)A roller coaster car may be approximated by a block of mass m. The car, which starts from rest, is released at a height h above the ground and slides along a frictionless track. The car encounters a loop of radius R, as shown. Assume that the initial height h is great enough so that the car never loses contact with the track Part A Find an expression for the kinetic energy of the car at the top of the loop. Express the kinetic energy in terms of m, g, h, and R. • View Available Hint(s) V ΑΣφ K = Submit Part B Find the minimum initial height h at which the car can be released that still allows the car to stay in contact with the track at the top of the loop. Express the minimum height in terms of R. • View Available Hint(s) Hνα ΑΣφ hmin = Submit Provide Feedback Figure < 1 of 1 h I=
Question 2 Force vs. Position for a Sliding Box 25 20 15 2 10 2 Position (m) - distance from the starting location Which of the following could be true about the line on the graph? Your answer: O The area between the line and the x-axis gives the value of power. O The area between the line and the x-axis gives the value of work. O The slope of the line gives the value of power. O The slope of the line gives the value of work. IN ao