A 2.0-kg block slides on a rough horizontal surface. A force (magnitude P = 4.0 N) acting parallel to the surface is applied to the block. The magnitude of the block's acceleration is 1.2 m/s2. If P is increased to 5.0 N, determine the magnitude of the block's acceleration.
A. 2.1 m/s2
B. 2.3 m/s2
C. 1.9 m/s2
D. 1.7 m/s2
E. 3.2 m/s2
Answer: D
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