A force of 1 N accelerates a mass of 1 kg at the rate of 1 m/s2.The acceleration of a mass of 2 kg acted upon by a net force of 2 N is
A)half as much.
B)twice as much.
C)the same.
D)none of these

Question

Quizplus · Accepted Answer

According to Newton's second law of motion, force is directly proportional to mass and acceleration. So, if a force of 1 N accelerates a mass of 1 kg at the rate of 1 m/s2, then a force of 2 N will accelerate a mass of 2 kg at the same rate of 1 m/s2. Therefore, the acceleration of a mass of 2 kg acted upon by a net force of 2 N is the same as the acceleration of a mass of 1 kg acted upon by a net force of 1 N, which is 1 m/s2. Thus, the correct choice is C.

A Force of 1 N Accelerates a Mass of 1