A 2-Kg block sits on a 4 Kg block that is on a frictionless table. The coefficient of friction between the blocks are μs = 0.3 and μk = 0.2.

a. According to the observer (with its reference attached to the floor): if a strong-enough force F is applied to the mass M2, the maximum acceleration that block m1 can possibly have is

a. 3m/s2

b. 1.5m/s2

c. 1 m/s2

d. 18 m/s2

e. NA

b. If F is strong enough to cause the masses to slide against each other, the acceleration of block n1 will be (according to a reference attached to the floor):

a. 1 m/s2

b. 1.5 m/s2

c. 2 m/s2

d. 18 m/s2

e. NA