A horizontal force of 930 N is needed to overcome the force of static friction between...

Question

Question

science physics

Answer 1

Answer #1

Considering forces in vertical direction, weight of the crate = normal force on crate by floor

Mg = N

Consider forces in horizontal direction, applied force = force of friction

Fapp= f_s

Fapp= 930N

Force of static friction ,f_s = m_s N , where m_s is the coefficient of static friction

F= m_s N

F = m_s Mg

m_s = F/ Mg = 930 / ( 150 x 9.8) = 0.633

Answer 2

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