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Three boxes with masses m1=m1= 1.5 kg, m2=m2= 4.9 kg and m3=m3= 8.5 kg are in contact with one another on a smooth frictionless surface, pushed by a 47 N force F⃗ pushF→push. What is the magnitude of the acceleration of block 1?
(a) 31.3 m/s2m/s2
(b) 7.34 m/s2m/s2
(c) 3.15 m/s2m/s2
(d) 4.80 m/s2
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