A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F = 20 N, making an angle of 30° with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is μ = 0.2. The difference between the accelerations of the block, in case (B) and case (A) will be: (g = 10 m/s2).

A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case

1.	A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F = 20 N, making an angle of 30° with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is μ = 0.2. The difference between the accelerations of the block, in case (B) and case (A) will be: (g = 10 m/s2).
A.	0.4 m/s2
B.	3.2 m/s2
C.	0.8 m/s2
D.	0 m/s2
Answer» D. 0 m/s2

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