Chapter 06, Problem 019 A 10 N horizontal force pushes a block weighing 3.6 N ag

Question

Chapter 06, Problem 019 A 10 N horizontal force pushes a block weighing 3.6 N against a vertical wall (see the figure). The coefficient of static friction between the wall and the block is 0.59, and the coefficient of kinetic friction is 0.40. Assume that the block is not moving initially. (a) Will the block move? ("yes" or "no") (b) In unit-vector notation Fxi + Fyj, what is the force on the block from the wall? (b) Number Units Click if you would like to Show Work for this question: Open Show Work

Explanation / Answer

here,

F = 10 N

weight , W = 3.6 N

us = 0.59

uk = 0.4

a)

the static frictional force , ffs = us * F = 5.9 N

as the static frictional force is more than the weight of block

then it will not move

b)

the force on box from wall , F = - 10 N i + 3.6 N j

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