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What can you say about the direction of the acceleration and the force that produces it?
Acceleration always occurs in the direction of the net force acting on an object. If the net force and acceleration have the same direction, the object speeds up; if they have opposite directions, the object slows down. The relationship between acceleration and the force that produces it is described by Newton's second law of motion.
What else can I help you with?
How is the direction of force related to the direction of velocity?
The direction of force influences the direction in which an object accelerates or changes its velocity. If the force is applied in the same direction as the velocity, the object speeds up. If the force is applied in the opposite direction, it slows down.
An object has initial velocity in the upward direction a final velocity in the downward direction and undergoes constant acceleration What can you say about its average acceleration?
The average acceleration of the object will be negative since it changes direction from upward to downward velocity. The acceleration will be constant because the object undergoes constant acceleration throughout the motion.
What is an equal and opposite force that does not produce an acceleration?
I think you are talking about reaction force. An example is an object, say a cup, on a table. The cup is attracted to the centre of the earth by gravity and would accelerate if the table was not there. The table is in the way and produces a force in reaction to the cup pressing down on it.
Does a change in direction change acceleration?
Not exactly, it can change a few degrees of its direction, but cannot change its velocity because if it stops, the force of motion that goes with it will demolish the car therefore it cannot change it's velocity.++++???? If you put the question in everyday language, it is asking "Can a car change direction while accelerating?"Yes it can, provided the driver is careful to keep the acceleration and instant speed within safe limits. I emphasise 'speed' because the direction hence velocity - a vector value - is changing.I have no idea of the point about the remark about stopping - the supposed consequences are fiction, and the question is about accelerating.
How is centripetal force related to newtons 2 force?
With regard to Newton's First Law only, about all you could say is that if an objecthas no centripetal force acting on it, then it continues in constant, uniform motion.
How is the direction of force related to the direction of velocity?
The direction of force influences the direction in which an object accelerates or changes its velocity. If the force is applied in the same direction as the velocity, the object speeds up. If the force is applied in the opposite direction, it slows down.
What is the force that opposes?
Friction.Called inertia. To accelerate a body the force is mass times acceleration. No force = no acceleration. People say " the force is opposed by the massacceleration"
An object has initial velocity in the upward direction a final velocity in the downward direction and undergoes constant acceleration What can you say about its average acceleration?
The average acceleration of the object will be negative since it changes direction from upward to downward velocity. The acceleration will be constant because the object undergoes constant acceleration throughout the motion.
What do newtons 3 laws or motion say?
I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector. III. For every action there is an equal and opposite reaction.
What is the force that opposes motion?
Friction.Called inertia. To accelerate a body the force is mass times acceleration. No force = no acceleration. People say " the force is opposed by the massacceleration"
What can force do?
Force makes objects change their direction. Though this does not mean without force all would be still as the man before me has said (There would be nothing to be still). It gives people the wrong idea of the term force. Now, one could say acceleration is change in direction. If some thing goes up because you throw it in the air then gravity (gravitational force), exclude air resistance slows the object down until it defeats the force from your hand and the object returns to earth. This is due to the force of gravity from the earth pulling the ball down to the earth and changing the objects direction or acceleration so its decreases the magnitude of acceleration and also changes it's direction towards the earth. As acceleration has magnitude and direction. So this shows that an object could move without force acting on it though the acceleration and magnitude of the force would never alter. It only seems that force makes motion because the frictional force that opposes you changes your direction to stationary. Forces can also deform objects as the impulse of the force can break bonds in solids.This is all summed up in Newton's first law of motion but I am going to say all 3 laws:Law 1: If no net force acts on a body then it can not ACCELERATE.Law 2: The net force on a body is equal to the product of the bodies mass and acceleration. I.e. F = M x ALaw 3: When two bodies interact, the forces from each other are equal in magnitude but opposite in direction.
What is an equal and opposite force that does not produce an acceleration?
I think you are talking about reaction force. An example is an object, say a cup, on a table. The cup is attracted to the centre of the earth by gravity and would accelerate if the table was not there. The table is in the way and produces a force in reaction to the cup pressing down on it.
Does a change in direction change acceleration?
Not exactly, it can change a few degrees of its direction, but cannot change its velocity because if it stops, the force of motion that goes with it will demolish the car therefore it cannot change it's velocity.++++???? If you put the question in everyday language, it is asking "Can a car change direction while accelerating?"Yes it can, provided the driver is careful to keep the acceleration and instant speed within safe limits. I emphasise 'speed' because the direction hence velocity - a vector value - is changing.I have no idea of the point about the remark about stopping - the supposed consequences are fiction, and the question is about accelerating.
How is centripetal force related to newtons 2 force?
With regard to Newton's First Law only, about all you could say is that if an objecthas no centripetal force acting on it, then it continues in constant, uniform motion.
In order for an object to move in uniform circular motion it must be accelerating?
Yes as a body moves along a circular path with uniform speed, its direction is ever changing. Hence the velocity is changing. So acceleration must be present. If acceleration vector is in the direction of the velocity then definitely its magnitude would change and so we cannot say the motion to be uniform. So the acceleration has to be perpendicular to the velocity vector, so it has to be along the radius. Hence the acceleration is named as radial acceleration. The force thus produced is known as centripetal force ie centre seeking force.
With regard to The Laws of Motion does a larger force causes a faster acceleration?
Hmmm ... this is true, conditionally: a larger NET force gives rise to a proportional acceleration.That is to say, when you're done adding up ALL of the forces acting on a body, making sure to take direction into account, the resultant force can be related to the acceleration the body will experience with the (famous) equation:ΣF = m * aThis is Newton's second Law, a candidate for the most important equation in all of physics.Remember, "F" and "a" are vectors (direction must be considered).
What types of change in motion causes acceleration?
Motion is the change of position over time. The rate of change of position is called or speed. Speed combined with its direction is called velocity. The rate of change of velocity is called acceleration. So, motion in which the speed or direction are changing is accelerated motion. The question uses the word cause, which may be confusing. Technically when a force is applied to a mass, there is acceleration. When there is acceleration the velocity changes. If the object was in motion to begin with, it would speed up or slow down or change direction. If the object was at rest, the force would have caused an increase in speed from zero, so it would start moving. Therefore if you think of a causal relationship, it would be more proper to say force causes acceleration, which IS a change in motion. For an example, an easy one is your bicycle. If you pedal, you are applying force. That force cause the bicycle's speed to increase ... acceleration ... and you are in motion. If you apply more force, you will go faster. If you apply the brakes, you will slow down which is also acceleration (because speed is changing). There is only one way to have motion without acceleration and that is to travel at a constant velocity ... constant speed in a straight line. In practice, there is no motion without acceleration for any period of time, because there is always some minute change in speed or direction.
