Which statement is most nearly the same as Newton's third law? A) If the net force acting on an object is zero, it does not accelerate. B) When you push on an object, it pushes back just as strongly on you. C) Acceleration of an object is proportional to net force divided by mass. D) When one object exerts a force on a second object, the first object exerts an equal force on itself in the opposite direction.

A mother and her 5-year old daughter are ice skating. While at rest, they face each other then push off eachother with their hands, sending them in opposite directions. Assuming the mother weighs much more than thedaughter, what motion results? The mom accelerates faster because she could push with more force. The little girl accelerates faster because her mom pushed her with more force. They both accelerate at the same rate because their forces are equal and opposite. Although the forces are equal and opposite, mom has more inertia. Hence momtravels slower than the daughter

The same net force is applied to two different objects. The second object has twice the mass of the first object. Compare the acceleration of the two objects. The acceleration of object 1 is one-half of the acceleration of object 2. The acceleration of object 1 is equal to the acceleration of object 2. The acceleration of object 1 is twice the acceleration of object 2. The acceleration of object 1 is one-fourth of the acceleration of object 2. The acceleration of object 1 is four times the acceleration of object 2.

Albert presses a book against a wall with his hand. As Albert gets tired, he exerts less force, but the book remains in the same spot on the wall. Classify each force on the book as increasing, decreasing, or not changing in magnitude when Albert reduces the force he is applying to the book. Not every classification must be used.   Is each one of the following increasing, decreasing or not changing: 1) weight of the book 2) maximum static frictional force of the wall on the book 3) NORMAL FORCE OF WALL ON THE BOOK 4)frictional force of wall on the book