0
Can the sum of the torques on an object be zero while the net force on the object is nonzero?
Wiki User
∙ 13y ago
Yes. Consider an object with no torques acting on it (therefore the sum of the torques is obviously zero) but with a force directed through its center of mass.
How about a freely spinning wheel on a shaft? Would have to be in a vacuum.
Ok wait, the answer is yes. Consider a horizontal beam attached at one end that is 6 ft long. If a force (x) is applied at the end of it in the downward direction and another force is applied that is twice as powerful (2x) in the upward direction 3 ft from the attached end the net torque is zero but the net force is x in the upward direction.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoYes. If there is a non-zero net force on an object, then by Newton's Second Law, the object will accelerate - there will be no equilibrium.
Add your answer:
Earn +20 pts
What effect does buoyant force have on a submerged object?
The weight of the water displaced by the object is subtracted from the actual weight of the object (out of water), leaving the object with a net positive weight while submerged.
How does net force affect acceleration?
If net force acting on a mass decreases, the acceleration of the object decreases. But if the mass of an object were to decrease while a constant net force acted on it, its acceleration would INcrease. If the net force on the object AND the object's mass both decrease, the object's acceleration could either increase OR decrease. We'd need the actual numbers in order to calculate how it would turn out.
In what way is the motion of a freely falling object different from the motion of the cart?
motion of free falling object does not have friction, while motion of the cart has force of friction
What would the acceleration of the object be the mass was triple while keeping the force the same?
The acceleration would also be trippled when the force is tippled. the relevant equation is: F=ma, where F= force m=mass a=acceleration
How do you find force while given kinetic energy and distance?
The work (energy) done on an object is Force x Distance. If there is no friction, and the object started at rest, then this will also be the kinetic energy that the object has. Then the kinetic energy, Ek = F * d, so F = Ek / d
What occurs when while the force is acting on an object?
If there is no counter-force (usually friction), the object will accelerate.
How the reaction force will act on an object while pulling and pushing the object placed on a table?
the object will move
How is terminal velocity reached by a falling object?
While an object falls faster and faster, the backwards force of air resistance will increase. Once the force of air resistance equals the force of gravitation, the object will no longer accelerate, and is said to have reached "terminal velocity".While an object falls faster and faster, the backwards force of air resistance will increase. Once the force of air resistance equals the force of gravitation, the object will no longer accelerate, and is said to have reached "terminal velocity".While an object falls faster and faster, the backwards force of air resistance will increase. Once the force of air resistance equals the force of gravitation, the object will no longer accelerate, and is said to have reached "terminal velocity".While an object falls faster and faster, the backwards force of air resistance will increase. Once the force of air resistance equals the force of gravitation, the object will no longer accelerate, and is said to have reached "terminal velocity".
What happens to an object's acceleration as the size of the force acting on the object increases?
F=m.a , a=F/m; acceleration is directly proportional with force. acceleration increase while force increase.
Can an object have a speed of 0 while it has an acceleration that is not 0?
Yes. Acceleration is independent of speed. A perfect example of an object with zero speed but nonzero acceleration is an object at the apex of being thrown upward. The entire time it is in the air it is accelerating downward. At its maximum height its speed is zero.
If gravitational force increases while mass stays the same what will the weight of the object do?
It Will increase
What is the importance of a ramp?
to apply less force while doing more work on an object
Definition of impulse and impulsive force?
An impulse refers to the change in momentum of an object, while an impulsive force is a relative term, used to refer a relatively large amount of force applied on a small object. Take into account relative force is relative.
What is a ramp that decreases the force required to move an object while increasing the distance the object travels?
simple machine
When the only force affecting an object is gravity that object is in?
Freefall this means the objects is falling through the air while gravity is pulling.
How is it possible to be moving in one direction even though the unbalanced force is in the opposite direction?
Perhaps you are thinking that the velocity should be proportional to the force, or something like that. That's not the way it works. It is the acceleration, not the velocity, that is proportional to the force, but it may take a while to change the velocity. If an object is moving in one direction and there is a force in the opposite direction, it may simply take a while for the velocity to change enough, so that it also moves in the direction of the force. For example, if you throw an object upwards, once you let it go, basically the only force acting on the object is gravity - which basically pulls it downward. Depending on the object's speed, it may take a while for the object to "turn around".
what is relationship between weight and mass?
Mass is the amount of matter in an object, while weight is the gravitational force applied to an object. Mass is a function of weight since weight it determined by the amount of force placed on an object of a certain mass.
