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2007-06-25 20:29:24 · 7 answers · asked by Lee Edward 1 in Science & Mathematics Physics

7 answers

Force is not motion. Force, in simple terms, is the act of pushing or pulling on something. Force is measured in pounds (and other units). Motion is the act of moving something, and in measured as distance over time (or just distance depending on what you are trying to determine).

You can have force without motion. If you are sitting on your chair right now, you are creating a relatively constant force downward on that chair. However, unless you are sinking into the ground, the chair is not in a downward motion.

You can also have motion without continuing force. If I throw a ball, it keeps moving even after I let go of it (no longer applying force). However, to accelerate the ball (going from zero speed to throwing speed) did require force.

In short, force and motion are tied together, but not the same thing.

2007-06-25 20:48:02 · answer #1 · answered by Anonymous · 0 0

You can have force without any motion. For example, if I drive a semi over you and set the brakes, you are subjected to the force of the semi's weight, but nothing is moving.

2007-06-26 03:45:52 · answer #2 · answered by Scythian1950 7 · 0 0

Force is definitely NOT motion.
As an illustration you can attach a spring between a wall of your room and the bookshelf at the other wall.
The spring will apply a pulling force of, let's say 10 lbf or 50N.
Nothing will move. The wall will be there also tomorrow and next week - and the bookshelf will remain in place for weeks. There is a constant force and no movement.

2007-06-26 05:13:58 · answer #3 · answered by Ernst S 5 · 0 0

Force is in fact cause of motion.

2007-06-26 03:43:38 · answer #4 · answered by pk b 2 · 1 0

Force = mass * accceleration

You don't actually have to be moving relative to a reference point to have an acceleration though. We have an acceleration because we are in Earth's gravitational field. It's 9.8m/s^2 or 9.8 meters per second per second.

We don't move because the ground or floor beneath us pushed back with an equal reaction force.

2007-06-26 03:37:26 · answer #5 · answered by minuteblue 6 · 0 1

Force isn't motion..it is what creates the *****.
From what i belive. like my rifle down range in Iraq.
i FORCE my trigger finger to shoot a round into a haji..
and that force creates the motion of that 5.56 mm round to spin and go into that haji's body and kill him..
Its as easy as 123.

2007-06-26 03:41:51 · answer #6 · answered by XXAZTEC-WARRIORxx 2 · 0 2

Technically yes, because kinetic energy is motion, which can be a force...you might wanna check with someone else but I'm pretty sure that's it.

2007-06-26 03:37:29 · answer #7 · answered by Jimena 2 · 0 2

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