vertical wall (see the figure). The coefficient of static friction between the wall and the block is 0.56, and the coefficient of kinetic friction is 0.49. Assume that the block is not moving initially. (a) Will the block move? ("yes" or "no") (b) In unit-vector notation Fxî+Fyĵ, what is the force on the block from the wall?

vertical wall (see the figure). The coefficient of static friction between the wall and the block is 0.56, and the coefficient of kinetic friction is 0.49. Assume that the block is not moving initially. (a) Will the block move? ("yes" or "no") (b) In unit-vector notation Fxî+Fyĵ, what is the force on the block from the wall?

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

Chapter6: Energy Of A System

Section: Chapter Questions

Problem 8P

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Figure below shows an overhead view of 0.0250 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force −→F1 has a magnitude of 6 N and is at θ1 = 30◦. Force −→F2 has a magnitude of 7 N and is atθ2 = 30◦. In unit-vector notation, what is the third force if the lemon half (a) is stationary, (b) has the varying velocity−→v = 13t ˆi − 14t ˆj m/s2, where t is time?
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