In Figure P4.25, m 1 = 11.0 kg and m 2 = 4.5 kg. The coefficient of static frict
ID: 2143441 • Letter: I
Question
In Figure P4.25, m1 = 11.0 kg and m2 = 4.5 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30.If the system is set in motion with m2 moving downward, what will be the acceleration of the system?
In Figure P4.25, m1 = 11.0 kg and m2 = 4.5 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30.If the system is set in motion with m2 moving downward, what will be the acceleration of the system?Explanation / Answer
force on m2
m2g - T = m2a
force on m1
T - 0.3*11*9.81 = m1a
from two equations
a =0.759m/sec^2
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