only one force acts on an object. Can the object have zero acceleration? Can it have velocity?
please explain with an example.....
2006-10-16 05:33:36 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
As per Newton's law, a body continues in its state of rest or of uniform motion in a straight line unless it be impelled by an external force to change that state. The force has to overcome friction first before motion is produced and having overcome the friction (static and dynamic), a force sufficient enough will accelerate the body as per the law,
force=mass* acceleration. As long as the force acts, the body will continue to move. But once in motion, assuming a frictionless field(theoritical), the body will continue to move at a uniform velocity. Any additional force will change its velocity. The rate of chage of velocity is acceleration.
2006-10-16 05:44:29 · answer #1 · answered by r_ravoori 2 · 0⤊ 0⤋
If a force is applied to an object, it will accelerate unless acted on by an equal and opposite force at the same time.
If a force of 40 Newtons is applied to a mass of 10 Kilograms, it will accelerate at a rate of 4 Meters per Second squared.
2006-10-16 12:52:55 · answer #2 · answered by reseda1420 4 · 0⤊ 0⤋
F = ma. If the force is non-zero, the only way for a to be zero is if m is infinite. So it's EXTREMELY unlikely that it will have zero acceleration.
Yes it can have velocity, most like will since it is accelerating.
Example? Drop your book. It's weight is the force that accelerated it to the floor.
2006-10-16 12:50:40 · answer #3 · answered by sojsail 7 · 0⤊ 0⤋
Zero acceleration means constant velocity
2006-10-16 12:34:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Constant velocity. Put the car on cruise control and if there were no forces slowing you down in someway (a hill) then you would be going at the same velocity with no more acceleration.
2006-10-16 12:39:26 · answer #5 · answered by nor2006 3 · 0⤊ 1⤋
As per Newton's second law
Force=mass*acceleration
So if you apply force there
has to be acceleration.
It can not be zero.
When force is applied there
is momentum change.
The rate at which momentum
changes is acceleration.
2006-10-16 12:39:07 · answer #6 · answered by openpsychy 6 · 0⤊ 0⤋
Depends on the magnitude of the force. If the force magnitude is not sufficient to cause displacement of the object then there is neither velocity nor accelleration.
2006-10-16 12:39:08 · answer #7 · answered by quark_sa 2 · 0⤊ 1⤋
http://physics.webplasma.com/physics01.html
i hope it will help u
2006-10-16 12:49:20 · answer #8 · answered by tabi_Z 3 · 0⤊ 0⤋