In the supermarket you return a cart to the cart area. You stand still and pushed the cart towards the other carts. You've just learned that the cart pushes back on you too, according to Newton's third law.
a) Explain why the carts moves and you do not.
Hint: Consider the cart and yourself separately. Also, consider all the forces acting on you and on the cart.
b) Which object is in equilibrium, you or the cart?
2007-01-11 14:15:06 · 5 answers · asked by Not Here 3 in Science & Mathematics ➔ Physics
Because of friction between your shoes and the ground, you do not move. If you were on ice, you would move backward.
Equilibrium? At what point in time?
2007-01-11 14:22:42 · answer #1 · answered by bozo 4 · 0⤊ 0⤋
The net force acting on the cart is not zero; whereas from the fact that you are not moving it follows that the net force acting on you is not zero.
Though the cart is pushing you, there is some other force which is against this force and together they keep you in equilibrium.
The one which is at rest ( or moving with constant speed) is in equilibrium.
2007-01-11 22:42:17 · answer #2 · answered by Pearlsawme 7 · 0⤊ 1⤋
The first law of Zeno of Elea states that there is no motion!
2007-01-11 22:22:05 · answer #3 · answered by Boehme, J 2 · 0⤊ 0⤋
You seem to be confused.
Force doesn't causes motion.It causes accleration.
2007-01-11 22:27:29 · answer #4 · answered by A 150 Days Of Flood 4 · 1⤊ 0⤋
Do your homework.
2007-01-11 22:26:11 · answer #5 · answered by Siervocal 3 · 0⤊ 2⤋