A rope extends between two poles. A 90 N boy hangs from it as shown in Fig. 1. Find the tensions in the two parts of the rope. 10 5.0° Fra Fig. A 200 N wagon is to be pulled up a 30° incline at constant speed (see Fig. 2). How large a force parallel to the incline is needed if friction effects are negligible? Fy sin 30° Fycos 30° 30 30° Fig. 2 A horizontal force of 140 N is needed to pull a 60 kg box across a horizontal floor at constant 23 speed. What is the coefficient of friction between floor and box? A 70 kg box is slid along the floor by a 400 N force. The coefficient of friction between the 4 box and the floor is 0.50 when the box is sliding. Find the acceleration of the box. A 70 kg box is pulled by a 400 N force at an angle of 30° to the horizontal. The coefficient 15 of kinetic friction is 0.50. Find the acceleration of the box. A 400 g block with an initial speed of 80 cm/s slides along a horizontal tabletop against a 6 friction force of 0.70 N. (a) How far will it slide before stopping? (b) What is the coefficient of friction between the block and the tabletop? 2.

A rope extends between two poles. A 90 N boy hangs from it as shown in Fig. 1. Find the tensions in the two parts of the rope. 10 5.0° Fra Fig. A 200 N wagon is to be pulled up a 30° incline at constant speed (see Fig. 2). How large a force parallel to the incline is needed if friction effects are negligible? Fy sin 30° Fycos 30° 30 30° Fig. 2 A horizontal force of 140 N is needed to pull a 60 kg box across a horizontal floor at constant 23 speed. What is the coefficient of friction between floor and box? A 70 kg box is slid along the floor by a 400 N force. The coefficient of friction between the 4 box and the floor is 0.50 when the box is sliding. Find the acceleration of the box. A 70 kg box is pulled by a 400 N force at an angle of 30° to the horizontal. The coefficient 15 of kinetic friction is 0.50. Find the acceleration of the box. A 400 g block with an initial speed of 80 cm/s slides along a horizontal tabletop against a 6 friction force of 0.70 N. (a) How far will it slide before stopping? (b) What is the coefficient of friction between the block and the tabletop? 2.

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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esmat.h... Figure Lobby | Top Hat A uniform board of length L and mass M lies near a boundary that separates two regions. In region 1, the coefficient of kinetic friction between the board and the surface is μ, and in region 2, the coefficient is 2. The positive direction is shown in the figure. (Figure 1) Before: region 1 After: 141 Aktiv Chemistry FI 1₂ D2L Homepage - Vande... M Gmail 12 1 of 1 > region 2 4 Part A W = Submit Handshake VYES - Vanderbilt - S... Find the net work W done by friction in pulling the board directly from region 1 to region 2. Assume that the board me constant velocity. Express the net work in terms of M, g, L, ₁, and μ2. ►View Available Hint(s) IVE ΑΣΦ Part B Complete previous part(s) Provide Feedback Course Home P Pearson ? Review | Co Copyright ©2022 Pearson Education Inc. All rights reserved | Terms of Use | Privacy Policy Pormin ▬▬▬▬
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