A box of mass 0.8 kg is placed on an inclined surface that makes an angle 30° abovethe horizontal, Figure A constant force of 18 N is applied on the box in a direction 10with the horizontal causing the box to accelerate up the incline. The coefficient ofkinetic friction between the block and the plane is 0.25.(a) Calculate the block's acceleration as it moves up the incline.(b) If the block slides down at a constant speed, find the value of force applied.30

Given, Mass, m=0.8 kg, angle of incline, θ=300, force, F=18 N, force direction, θ=3600-100=3500, and…

Answered: A box of mass 0.8 kg is placed on an…

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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The coefficient of static friction between an 8 kg box at rest and a 35° inclined plane is 0.70. Determines whether the object starts moving or stays in a static state. Justify your answer. If the object starts moving, what happens to the coefficient of friction? Also, describes the movement of the box.
Two blocks are positioned on surfaces, each inclined at the same angle of 40.9 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 6.53 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.210. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the RIGHT at an acceleration of 1.5 m/s^2? 3.15 kg 5.48 kg 2.65 kg 2.32 kg
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Many birds can attain very high speeds when diving. Using radar, scientists measured the altitude of a barn swallow in a vertical dive; it dropped 208 m in 3.0 s. The mass of the swallow was estimated to be 0.018 kg, and its cross-section area as 5.6 x 10-4 m2. What was the drag coefficient for this swallow as it dove?
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A 100-N box rest on top of 450 inclined plane. The box is connected to a hanging object of unknown weight via a flexible cord that passes over a frictionless pulley.The coefficient of kinetic friction (?k) between the incline and the box is 0.15. Find the weight of the hanging object so that the box will slide up the incline at a constant speed after it is set in motion?
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