AP Physics 1easymcq1 pt
Two blocks (4.0 kg and 2.0 kg) are stacked and pushed across a frictionless floor with a horizontal force of 30 N applied to the bottom block. If they move together, their acceleration is
A.5.0 m/s²
B.7.5 m/s²
C.15 m/s²
D.2.5 m/s²