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In order for an object to travel with constant velocity the sum of forces acting on it must be 0 N. According, to Newton's second law,
ΣF = ma
where
ΣF is the sum of forces
m is mass
a is acceleration
If the acceleration is not 0, then the object is not traveling at a constant velocity. In order for a to equal 0, the sum of forces must be 0 because by solving Newton's second law for a, we get
a=ΣF/m
If ΣF is not 0, then that equation will never allow a to equal 0 and the object will b accelerating. Therefore, the sum of forces must equal 0 for an object to travel with constant velocity.
What else can I help you with?
Rate of change of the velocity of an object?
The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".
What 2 ways causes an object's velocity to change?
If an object's speed changes, or it heads off in a new direction, its velocity has changed. Because of friction and gravity 1. acceleration 2. deceleration 3. change of direction
Is displacement the change in velocity of an object?
Velocity is change in displacement over time.
What is a force that can cause an object to change its speed and direction?
A basic physics answer for this is that a net force (or unbalanced force) will cause an object to accelerate, that is, cause the object to change its speed and/or direction.
What will change if a force pushes an object in the same direction as the object's motion?
It will cause acceleration, and increase its velocity.
what is the relation of mass and velocity to impulse?
Impulse is equal to the change in momentum of an object, which is the product of its mass and velocity. So, the greater the mass or velocity of an object, the greater the impulse required to change its momentum.
How do you calculate the change in velocity of an object?
To calculate the change in velocity of an object, you subtract the initial velocity from the final velocity. The formula is: Change in velocity Final velocity - Initial velocity.
The change in an object velocity?
The change in an object's velocity is determined by its acceleration. If the object's acceleration is positive, its velocity increases; if it is negative, the velocity decreases. The larger the acceleration, the quicker the change in velocity will be.
Rate of change of the velocity of an object?
The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".
The rate of change in an object's velocity is the object's what?
The rate of change in an object's velocity is the object's acceleration. It is a vector quantity that describes how quickly the velocity of an object is changing with time.
Is velocity the same as acceleration?
No, velocity and acceleration are not the same. Velocity is the rate of change of an object's position, while acceleration is the rate of change of an object's velocity.
Is impulse delivered to an object equal to a change in the objects velocity?
Yes, impulse is equal to the change in momentum of an object, which can be calculated as the mass of the object multiplied by the change in velocity. So, impulse is related to the change in velocity of an object.
Is this true or false balanced forces acting on an object will change the objects velocity?
False. Balanced forces acting on an object will not change the object's velocity. When forces are balanced, there is no change in the object's velocity as there is no net force acting on the object.
Is there an acceleration when an object traveling at constant velocity and why?
No, there is no acceleration when an object is traveling at a constant velocity. Acceleration is the rate of change of velocity, so if the velocity is constant, there is no change and therefore no acceleration.
What is Dividing an object in motion is its velocity by the time necessary to make that change?
Dividing an object's change in position by the time it took to make that change gives you the average velocity of the object. Velocity is a vector quantity that includes both speed and direction, so it's important to consider both aspects when calculating velocity.
What will always change when an object accelerates?
The object's velocity will change when it accelerates. Acceleration is the rate of change of velocity, so as an object accelerates, its velocity will continuously increase or decrease depending on the direction of acceleration.
Describe the to ways in which velocity can change?
Velocity can change by either changing the speed of an object or changing its direction of motion. If an object speeds up or slows down, its velocity will change. Similarly, if an object changes its direction, its velocity will also change.
