(a) the reaction force(b) the frictional force DOM(c) the acceleration of the box[Answer: (a) 82.48 N (b) 24.74 N (C) 4.00 m s ]9. An empty elevator has a weight of 7000 N. The elevator is moving upward at8 ms". It slows to a stop with a constant acceleration in 5 s. Calculate:(a) the acceleration of the elevator.(b) the tension in the supporting cable of the elevator.[Answer: (a) -1.60 m s (b) 5858.31 N]10.babnr eboldea arllo noilalsA box, A, of mass 15 kg rests on a smooth horizontal floor beside a box, B,of mass 8 kg as shown in the figure above. If the box of 15 kg is pushed with30 N force at 30° above the horizontal plane, calculate:(a) the acceleration of the boxes.(b) the contact force between the boxes.[Answer: (a) 1.13 ms (b) 9.04 N]11.Two blocks connected by a light string are pulled towards the right as shownin the figure. Assume the floor is frictionless. Given mA = 3 kg, m = 2 kg andthe acceleration of the system is 2 m s, calculate:(a) the tension, T, in string between block A and block B.(b) the pulling force, F.[Answer: (a) 6 N (b) 10 N]mal onitootal12. Calculate the acceleration for an Atwood's machine with masses 3 kg and8 kg.analy baallooi nw[Answer: 4.46 m s]

9. Here we are dealing with an accelerating elevator. Due to the acceleration of the elevator, it…

Answered: 9 An empty elevator has a weight of…

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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9 An empty elevator has a weight of 7000 N. The elevator is moving upward at 8ms". It slows to a stop with a constant acceleration in 5 s. Calculate: (a) the acceleration of the elevator. (b) the tension in the supporting cable of the elevator. [Answer: (a) -1.60 m s (b) 5858.31 N]