2007-02-17 07:53:15 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Remember, net force. This is the overall force acting on the object. The more I think about it the more it does not seem possible.
2007-02-17 08:08:28 · update #1
It seems the majority of your answerers have forgotten the basic concept of a force. It has to do with ACCELERATION, not VELOCITY.
I could be moving at 250 000 km/h and still have a net force acting against me. Of course, I would be SLOWING DOWN but I would still be moving against the net force.
Just think of a skateboard. If you start moving and then hop on the board and stop pushing, you'll eventually come to a stop. Friction is acting AGAINST the skateboard, but you are still moving FORWARD. It's just that you're slowing down.
Think of it this way. If the net force is acting in the same direction as your velocity, you are speeding up. If the net force is acting in the opposite direction as your velocity, you are slowing down.
Hope this helps.
2007-02-18 07:59:07 · answer #1 · answered by Ryan HG 2 · 0⤊ 0⤋
I'm surprised you haven't got a satisfactory answer yet. Throw a ball up in the air. After the ball has left your hand at some initial velocity, it continues to travel upwards even though the net force is gravity in the down direction. Also think about when you let your car coast up a hill or even along flat ground. The car moves in the opposite direction of the net force.
2007-02-17 08:38:22 · answer #2 · answered by Chris S 3 · 0⤊ 0⤋
Jedi is correct. A net force by definition is the "sum of all forces" acting on the object. The object will move in the direction of that "net" force.
2007-02-17 08:23:55 · answer #3 · answered by p v 4 · 0⤊ 0⤋
Impossible. The net force on the object is what makes it move. The rocket goes up because their is a force downwards on the gas, which pushes the rocket up, but the force on the rocket is still up.
2007-02-17 08:06:53 · answer #4 · answered by Jedi 4 · 0⤊ 0⤋
Are you looking for Newton's first law of motion? Every body in motion will remain in motion until acted upon by an unbalanced external force.
a motor vehicle collision
2007-02-17 08:06:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Despite the fact that what you're "asking" is not even a question, Newton's third law does come to mind. "For every action, there is an equal but opposite reaction." It's why rocket motors work.
2007-02-17 08:04:51 · answer #6 · answered by Diogenes 7 · 0⤊ 0⤋
Helium balloon and gravity? The balloon goes up because gravity affects it less than the surrounding air.
2007-02-17 08:00:49 · answer #7 · answered by TychaBrahe 7 · 0⤊ 1⤋