If a box is lying on the floor of a wagon with a coefficient of friction 0.2, what is the maximum acceleration of the wagon for which the box would remain stationary? (Let g = 9.81 m/s2)
A. 1.96 m/s2
B. 2 m/s2
C. 3.92 m/s2
D. 4 m/s2
Answer:A
If a box is lying on the floor of a wagon with a coefficient of friction 0.2, what is the maximum acceleration of the wagon for which the box would remain stationary? (Let g = 9.81 m/s2)
A. 1.96 m/s2 B. 2 m/s2 C. 3.92 m/s2 D. 4 m/s2