Answer: im thinking that the answer would be 16.3 because using newtons laws of motion i could conclude that 20newtons - 3.7newtons = 16.3 however i am not 100% sure but im pretty confident in my answer.
Explanation: Every Action has an Equal and Opposite reaction. The Newton’s law of motion explains that physical law has a relationship with all mechanical actions. In essence all energy of force and motion will have an equal and reverse energy of force and motion.