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Acceleration is the rate of change of velocity over time. It can be described as an increase or decrease in speed or a change in direction. The units of acceleration are typically in meters per second squared (m/s^2).
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Can a car driving backwards have a positive acceleration?
Yes, it just depends on how you define which way is "positive". If you define the "backwards" direction to be the positive direction, acceleration will be positive when going "backwards". Note that if we define the axes like this, going "forwards" will give the car a negative acceleration.
What are two components used to define motion?
Velocity and acceleration are two components used to define motion. Velocity describes the speed and direction of an object's motion, while acceleration describes how quickly an object's velocity is changing.
How is a negative acceleration different from a positive acceleration?
A negative acceleration refers to a decrease in velocity, while a positive acceleration refers to an increase in velocity. Negative acceleration occurs when the speed of an object is decreasing, such as when it is slowing down. Positive acceleration occurs when the speed of an object is increasing, such as when it is speeding up.
When can you used the positive acceleration due to gravity and negative acceleration due to gravity?
You can use positive acceleration due to gravity when an object is moving in the direction of the gravitational force, like when it is falling towards the ground. Negative acceleration due to gravity is used when an object is moving opposite to the direction of the gravitational force, like when it is moving upwards against gravity.
What is the value of acceleration of an object in freefall?
The acceleration of an object in freefall is approximately 9.81 m/s^2, which is due to the force of gravity acting on the object. This acceleration is constant near the surface of the Earth, regardless of the object's mass.
How can you define acceleration due to gravity?
yes, 9.81 m/s^2
Can a car driving backwards have a positive acceleration?
Yes, it just depends on how you define which way is "positive". If you define the "backwards" direction to be the positive direction, acceleration will be positive when going "backwards". Note that if we define the axes like this, going "forwards" will give the car a negative acceleration.
Define angular impulse?
Angular impulse is defined as the rate-of-change of the angular acceleration.
What are two components used to define motion?
Velocity and acceleration are two components used to define motion. Velocity describes the speed and direction of an object's motion, while acceleration describes how quickly an object's velocity is changing.
How is a negative acceleration different from a positive acceleration?
A negative acceleration refers to a decrease in velocity, while a positive acceleration refers to an increase in velocity. Negative acceleration occurs when the speed of an object is decreasing, such as when it is slowing down. Positive acceleration occurs when the speed of an object is increasing, such as when it is speeding up.
When can you used the positive acceleration due to gravity and negative acceleration due to gravity?
You can use positive acceleration due to gravity when an object is moving in the direction of the gravitational force, like when it is falling towards the ground. Negative acceleration due to gravity is used when an object is moving opposite to the direction of the gravitational force, like when it is moving upwards against gravity.
What is the value of acceleration of an object in freefall?
The acceleration of an object in freefall is approximately 9.81 m/s^2, which is due to the force of gravity acting on the object. This acceleration is constant near the surface of the Earth, regardless of the object's mass.
Define Change in speed?
change in speed is acceleration. change in speed is the slope of the speed versus time graph, or the derivative of such.
Why is defining only force not enough?
If you are talking about problems involving Newton's second law of motion, F = ma, you would need to define two of the three variables of force, mass, and acceleration in order to find the third variable. If you have force and mass, you can find acceleration. If you have force and acceleration, you can find mass. If you have mass and acceleration you can find force.
Define acceleration and give an appropiate corresponding unit of measurement?
Acceleration is change of velocity per time unit; the SI unit is meters per second per second, usually abbreviated as "meters per square second".
Can Acceleration be used as a frame of reference?
Acceleration is not typically used as a frame of reference in physics. It is a physical quantity that describes how an object's velocity changes over time. In contrast, frames of reference are used to define the position and motion of objects relative to a chosen point or system.
How would you define acceleration due to gravity?
Acceleration due to gravity is the rate at which an object accelerates towards the Earth when falling freely under gravity. It has a constant value of approximately 9.81 m/s^2 near the surface of the Earth.
