To solve the problem we should know about Newton's Second law of motion.
What is Newton's Second law of motion?
According to Newton's Second law of motion, the force is the product of the mass of the object and the acceleration of the object.
Force = mass x acceleration
The acceleration of the couch is 0.256 m/s².
Given to us
- Net Force = 21 N
- Mass of the couch = 82 kg
According to Newton's Law of motion
Force = mass x acceleration
[tex]21 = 82 \times acceleration\\\\acceleration = \dfrac{21}{82} = 0.256\ m/sec^2[/tex]
hence, the acceleration of the couch is 0.256 m/s².
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