Two wooden crates rest on top of one another. The smaller top crate has a mass o

Question

Two wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 16.0 kg and the larger bottom crate has a mass of m2 = 90.0 kg. There is NO friction between the crate and the floor, but the coefficient of static friction between the two crates is ?s = 0.77 and the coefficient of kinetic friction between the two crates is ?k = 0.6. A massless rope is attached to the lower crate to pull it horizontally to the right (which should be considered the positive direction for this problem).

1) The rope is pulled with a tension T = 368.0 N (which is small enough that the top crate will not slide). What is the acceleration of the small crate in m/s2?

Explanation / Answer

let.. e.g.. 4)Since µk = 0.69, the maximum force that can be exerted by friction is given by F=µk = 0.69*N, where N is the same normal force we had before. So the force is 169.2225 newtons, therefore the acceleration is 6.7689m/s² (by F=ma) hope will b hlpfull

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