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Are the forces balanced or unbalanced when you push a box of books until it is moving at 0.5 miles per second?
Wiki User
∙ 12y ago
During the time, you're pushing it, the forces are unbalanced. Once you stop, they are balanced. Unbalanced forces result in a change in motion. Balanced forces produce no change.
It's kind of funny that you're pushing your box 1800 miles per hour, though! :)
Wiki User
∙ 12y ago
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What is the definition of the word unbalanced forces?
When two or more forces act on an object, if the sum (vector sum) of the forces is zero, the forces are said to be balanced. Otherwise the forces are unbalanced. According to Newton's Second Law, an unbalanced force will cause an acceleration.
To start or change the motion of an object do you need unbalanced force or balanced force?
Doesn't matter Balanced Force would mean the object is traveling at a constant velocity due to Newton's First Law of Motion (Law of Inertia) Unbalenced Force would mean the object is accelerating (or decellerating) due to Newton's Second Law of Motion
What would happen to a moving object if no unbalanced force acts upon it?
Yes, due to momentum. For example, an object traveling in space might have no forces acting on it but still be moving through space. However, the question might also be asked, how did this object start moving in the first place? If the object was created in a stationary state, then unbalanced forces would have to act upon it to get it moving. The object would have to have been created while moving in order to get it to move without unbalanced forces acting upon it.
Must there be an unbalanced net force acting on any moving objects?
Yes, whether an object will move or stay stationary in its place, or move in contant velocity depends on the NET force that is acting on it. * If there is a balanced force, ( all forces cancel each other out) , then the object will not move, or stay moving at a constant velocity (a=0) * If there is an unbalanced force, (forces donot cancel), then the object will move.
How are the forces on a moving car balanced Surely if thrust and air resistance are equal the car will be stationary.?
No, that's not the way our Universe works. I suggest do some reading on Newton's Second Law - for instance, in the Wikipedia. Briefly, you do NOT need a NET force to keep an object moving. With a net force of zero (i.e., balanced forces): * A stationary object will remain stationary * A moving object will continue moving, at constant velocity.
How can you tell if a force is balanced or unbalanced by looking at it?
2 Forces are unbalanced when an object that is not moving starts moving or changes speed or direction. Balanced forces are the opposite they are where an object that is not moving stays still or an object that is moving stays at a constant pace.
Similarity between balanced and unbalanced forces?
If the vector sum of forces on an object is zero, the forces are said to be balanced. Otherwise they are said to be unbalanced. Unbalanced forces will cause an acceleration, according to Newton's Second Law (a = F/m, where F is the net force, that is, the vector sum of all forces acting on the object).
What is the definition of the word unbalanced forces?
When two or more forces act on an object, if the sum (vector sum) of the forces is zero, the forces are said to be balanced. Otherwise the forces are unbalanced. According to Newton's Second Law, an unbalanced force will cause an acceleration.
What are some examples of unbalanced forces?
Anything that induces acceleration. As found in Newton's second law F=ma. There must be an acceleration when an unbalanced force is present. So anything that gets something moving or makes it move faster or slower. If it is moving at a constant rate then it doesn't count. For instance when I push a box to get it to move; when it starts moving there is an unbalanced force. When I kick a ball, the second it starts moving, it shows there is an unbalanced force present. I think you get the idea from here...=============================There is no such thing as "an unbalanced force". A single force by itself is notbalanced or unbalanced.A group of two or more forces is balanced if all the individual forces in the groupadd up to zero. Example: You push a shopping cart forward, while I push it backward.A group of two or more forces is unbalanced if all the individual forces in the groupdon't add up to zero. Example: You push a shopping cart forward while a mousepushes it backward.
How does Newton's second law apply to the balanced force and unbalanced forces?
Newton's first law, which states that a body at rest remains at rest and a body in motion remains in motion at constant velocity in a straight line unless acted upon by an unbalanced force.
To start or change the motion of an object do you need unbalanced force or balanced force?
Doesn't matter Balanced Force would mean the object is traveling at a constant velocity due to Newton's First Law of Motion (Law of Inertia) Unbalenced Force would mean the object is accelerating (or decellerating) due to Newton's Second Law of Motion
What would happen to a moving object if no unbalanced force acts upon it?
Yes, due to momentum. For example, an object traveling in space might have no forces acting on it but still be moving through space. However, the question might also be asked, how did this object start moving in the first place? If the object was created in a stationary state, then unbalanced forces would have to act upon it to get it moving. The object would have to have been created while moving in order to get it to move without unbalanced forces acting upon it.
Must there be an unbalanced net force acting on any moving objects?
Yes, whether an object will move or stay stationary in its place, or move in contant velocity depends on the NET force that is acting on it. * If there is a balanced force, ( all forces cancel each other out) , then the object will not move, or stay moving at a constant velocity (a=0) * If there is an unbalanced force, (forces donot cancel), then the object will move.
Is a hill unbalanced force?
A hill is not a force, balanced or otherwise. According to Newton's Second Law, if there is any unbalanced force on an object, the object accelerates - its velocity changes.
How do balanced and unbalanced forces relate to a parachute?
If the parachutist is just falling down vertically, he is falling because of the unbalance force. Gravity is pulling him down. Gravity is stronger than the air resistance that is "keeping him up". The two unbalanced forces: gravity & air resistance. Because they are imbalance, he is accelerating towards the Earth's surface at 9.8 meters per second.
How are the forces on a moving car balanced Surely if thrust and air resistance are equal the car will be stationary.?
No, that's not the way our Universe works. I suggest do some reading on Newton's Second Law - for instance, in the Wikipedia. Briefly, you do NOT need a NET force to keep an object moving. With a net force of zero (i.e., balanced forces): * A stationary object will remain stationary * A moving object will continue moving, at constant velocity.
Why do you push harder on the pedals of the bicycle when first starting out than when moving at constant speed?
Basically, as a body accelerates, the forces acting upon it are unbalanced. However, as one reaches uniform speed (constant speed) you are no longer accelerating, so the forces acting upon the bike are now balanced. Newton's second law of motion states that when something is moving, it will continue to move at the same velocity until another force is applied (inertia). Because of this, the bike will be moving "on its own" after you stop peddling, so there is less need to pedal.
