40 m-11. The roller-coaster car shown passes a vertical height of 25 m on the second hill. Determine the velocityof the car, whose mass is 800. kg, at point 2 if it starts moving at 10.0 m/s at point 1 on a frictionlesstrack.y=0-25m-->

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Answered: 40 m- 11. The roller-coaster car shown…

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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You push a 80-kg file cabinet to the right on a frictionless horizontal surface with a force of 175 N from rest, the cabinet moves a distance of 12 m. What is the final speed of the cabinet, in m/s? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A0.28-kg rock is thrown vertically upward from the top of a cliff that is 31 m high. When it hits the ground at the base of the cliff, the rock has a speed of 30 m/s . You may want to review (Pages 234 -241) - Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. ? m/s Submit Requeet Answer Part B Find the greatest height of the rock as measured from the base of the cliff. Express your answer using two significant figures. Hmar = Submit Requeet Anewer
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71.Block 2 shown below slides along a frictionless table as block 1 falls. Both blocks are attached by a frictionless pulley. Find the speed of the blocks after they have each moved 2.0 m. Assume that they start at rest and that the pulley has negligible mass. Use m, = 2.0 kg and m₂ = 4.0 kg. 20 Solution
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75. ao A net external force is applied to a 6.00-kg object that is initially at rest. The net force component along the displacement of the object varies with the magnitude of the displacement as shown in the drawing. What is the speed of the object at s = 20.0 m? F cos e 10.0 N 5.00 N 10.0 m 20.0 m
4. An 8000 kg roller coaster, traveling along the frictionless track shown, has velocity v, = 30 mi/hr at the point shown. a rbiw 2501gs owann woy lood 0 200 b7 = b Anobelor orly uhow ord bni (O B bruo e 101evols n eog nemow gpl 02 AS notlud s 2orlauq bns ası bns ,eS ol viioolov h h/2 St8 291819loosb Sdaug orla bib onud 1edw.21stom E docs ons 2Tooft a'1oq la sri (A A)Given that h = 20 meters is also the horizontal distance between points A and B, make a plot of the potential energy vs. horizontal distance that includes axes with numbers and units.p101 210 B) Make a plot of the kinetic energy of the coaster vs. horizontal distance that includes axes with numbers and units. MOLKS BA pOM wncp wo C) Calculate its velocity at point B. 10 50101 Iemon or 2oob sq noidsrsloosb sru ganuC (a D) With the same initial condition of v, = 30 mi/hr, suppose the track does have friction and by the uctime the coaster reaches point B it has a speed of 15 mi/hr. How much work has the force of friction done…

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40 m- 11. The roller-coaster car shown passes a vertical height of 25 m on the second hill. Determine the velocity of the car, whose mass is 800. kg, at point 2 if it starts moving at 10.0 m/s at point 1 on a frictionless track. y=0 -25m-->