Question

Mass my = 12.6 kg is on a horizontal surface. Mass m2 = 7.98 kg hangs freely on a rope which is attached to the first mass. The coefficient of static friction between my and the horizontal surface is us = 0.626, while the coefficient of kinetic friction is uk = 0.100. Surface when cover hele andere le com a rope which is attached to the first m1 7777777 If the system is set in motion with my moving to the right, then what will be the magnitude of the system's acceleration? Consider the pulley to be massless and frictionless. Submit Answer Tries 0/12 If the system is set in motion with my moving to the left, then what will be the magnitude of the system's acceleration? Submit Answer Tries 0/12

Answer 1

hinen values i Info m.- 12.6 kg Ms = 0.626 m₂ = 7.98 kg x = 0.100 1 - 1 = , a , T= m₂ g - maa fk MkN = 0.100 x 12.689.8. - 12.34 N LAS If m, is moving right then only frictional farca will change its direction Take a ma mag-m₂ a 12.34 = mia a mi 9 - 12.34 mitme = 7.98x9.6 - 12:34 - 12.6 +7,98 la = 3.20 m/s2 of my is moving left then T thx = th, a mag-m, a + 12.34 = mia a mag + 12.34 7.98*8 + 12:34 . + m2 2.6 + 7.48 Part (B) Ta = 3. 70 m/s2