Two experiments are performed. In (A), an 18.0-N force pushes horizontally on a 2.00-kg block that then pushes on a 4.00-kg block. In (B), an 18.0-N force pushes on a 4.00-kg block that then pushes on a 2.00-kg block. Which statement is correct?
A. The acceleration is 3.00 m/s2 in both (A) and (B).
B. The acceleration is 4.50 m/s2 in both (A) and (B).
C. The acceleration is 6.00 m/s2 in both (A) and (B).
D. The acceleration is 9.00 m/s2 in both (A) and (B).
E. The 2.00-kg block has a 9.00 m/s2 acceleration. The 4.00-kg block has a 4.50 m/s2 acceleration.
Answer: A
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