Laboratory Exercise #9: First motion: A cart is given an initial speed up an incline. The cart slows down to rest. X2 Second motion: A cart on the same incline is given twice as much initial speed, slowing down to rest. The Question: The distance traveled by the cart is multiplied by 2 (a) Which equation is relevant? Justify your answer. Ax = V2 2a or 2a Ax=v² because both are (b) Which variable is constant, and how do The time you know? is constant ending at rest. because they both end at rest (c) Answer the question using the relevant equation. Fill in the box above with your final answer. Ax - v z 2a 251)

Laboratory Exercise #9: First motion: A cart is given an initial speed up an incline. The cart slows down to rest. X2 Second motion: A cart on the same incline is given twice as much initial speed, slowing down to rest. The Question: The distance traveled by the cart is multiplied by 2 (a) Which equation is relevant? Justify your answer. Ax = V2 2a or 2a Ax=v² because both are (b) Which variable is constant, and how do The time you know? is constant ending at rest. because they both end at rest (c) Answer the question using the relevant equation. Fill in the box above with your final answer. Ax - v z 2a 251)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Introduction And Vectors

Section: Chapter Questions

Problem 69P: A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0...

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A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 2.35 m high, and from there it will fall into a pool (Fig. P3.42). (a) Will the space behind the waterfall be wide enough for a pedestrian walkway? (b) To sell her plan to the city council, the architect wants to build a model to standard scale, which is one-twelfth actual size. How fast should the water flow in the channel in the model? Figure P3.42
A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0 m), (60.0 m, 80.0 m), (10.0 m, 10.0 m), (40.0 m, 30.0 m), and (70.0 m, 60.0 m), all measured relative to some origin, as shown in Figure P1.69. His ships log instructs you to start at tree A and move toward tree B, but to cover only one-half the distance between A and B. Then move toward tree C, covering one-third the distance between your current location and C. Next move toward tree D, covering one-fourth the distance between where you are and D. Finally move toward tree E, covering one-fifth the distance between you and E, stop, and dig. (a) Assume you have correctly determined the order in which the pirate labeled the trees as A, B, C, D, and E as shown in the figure. What are the coordinates of the point where his treasure is buried? (b) What If? What if you do not really know the way the pirate labeled the trees? What would happen to the answer if you rearranged the order of the trees, for instance, to B (30 m, 20 m), A (60 m, 80 m), E (10 m, 10 m), C (40 m, 30 m), and D (70 m, 60 m)? State reasoning to show that the answer does not depend on the order in which the trees are labeled. Figure 1.69
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As you are driving to school one day, you pass a construction site of a new building and you stop to watch for a few minutes. A crane is lifting a batch of bricks on a pallet to an upper floor of the building. Suddenly a brick falls off the rising pallet. You measure the time it takes for the brick to hit the ground and you find it to be 2.5 seconds. The crane has height markings. You saw the brick fell off the pallet at a height of 30.7 meters above the ground. A falling brick can be dangerous, and you wonder how fast the brick was moving when it hit the ground. Since you are taking physics, you quickly calculate the answer.
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