You reach out to push on a car as it passes by and manage to exert a forward force of 10 N on it. When you do this, the car exerts
A. a backward force of 10 N on you, because forces always come in equal but oppositely directed pairs.
B. a backward force of somewhat less than 10 N on you, because the car's forward velocity reduces the force it needs to accelerate forward.
C. no backward force on you at all, because the force of its velocity is already enough to keep it moving forward.
D. a backward force of somewhat more than 10 N on you, because, in addition to the reaction force, it must accelerate your hand backward.
Answer:A
You reach out to push on a car as it passes by and manage to exert a forward force of 10 N on it. When you do this, the car exerts
A. a backward force of 10 N on you, because forces always come in equal but oppositely directed pairs. B. a backward force of somewhat less than 10 N on you, because the car's forward velocity reduces the force it needs to accelerate forward. C. no backward force on you at all, because the force of its velocity is already enough to keep it moving forward. D. a backward force of somewhat more than 10 N on you, because, in addition to the reaction force, it must accelerate your hand backward.