Two blocks of masses m1 = 3 kg and m2 = 12kg are in contact on a smooth horizontal surface. A horizontal force of magnitude F = 15 N pushes them as shown below (a)Find the magnitude of the acceleration of the system. (b)Find the magnitude of the reaction R that block m1 exerts on block m2. Remember that action and reaction force have the same magnitude but opposite direction
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The net force acting on the system is $F = 15 N$. According to Newton's second law, $F = ma$, where $a$ is the acceleration of the system. Therefore, the acceleration of the system is $a = \frac{F}{m} = \frac{15 N}{15 kg} = 1 m/s^2$. Show more…
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