A 10-kg block is connected to a 40-kg block as shown in the figure. The surface on that the blocks slide is frictionless. A force of 50 N pulls the blocks to the right. 
-What is the magnitude of the acceleration of the 40-kg block?
A) 0.5 m/s2
B) 1 m/s2
C) 2 m/s2
D) 4 m/s2
E) 5 m/s2
Correct Answer:
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