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Questions and Answers
What physical quantity does the distance equation describe?
What physical quantity does the distance equation describe?
Which equation describes the final velocity of an object under uniform acceleration?
Which equation describes the final velocity of an object under uniform acceleration?
What is the key characteristic of uniform accelerated motion?
What is the key characteristic of uniform accelerated motion?
Which type of motion is exemplified by objects like free-falling objects and bicycles braking?
Which type of motion is exemplified by objects like free-falling objects and bicycles braking?
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How are the initial and final velocities related in uniform accelerated motion?
How are the initial and final velocities related in uniform accelerated motion?
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What type of motion does a free-falling object experience under the force of gravity?
What type of motion does a free-falling object experience under the force of gravity?
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In uniform accelerated motion, how do the velocity graphs differ between uniform and non-uniform acceleration?
In uniform accelerated motion, how do the velocity graphs differ between uniform and non-uniform acceleration?
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What happens to the speed of an object in uniform accelerated motion as time progresses?
What happens to the speed of an object in uniform accelerated motion as time progresses?
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Which equation describes the velocity of an object in uniform acceleration involving initial velocity, acceleration, and time taken?
Which equation describes the velocity of an object in uniform acceleration involving initial velocity, acceleration, and time taken?
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Which situation would not be an example of uniform accelerated motion?
Which situation would not be an example of uniform accelerated motion?
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What differentiates the motion of an object in uniform accelerated motion from moving at a constant velocity?
What differentiates the motion of an object in uniform accelerated motion from moving at a constant velocity?
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Study Notes
Uniform Accelerated Motion
Uniform accelerated motion refers to the motion of an object in a straight line with a constant acceleration and zero difference between initial and final velocities. In this type of motion, the velocity of an object changes at a constant rate, but it does not mean that the object moves at a constant velocity. Instead, uniform accelerated motion involves an object moving with an increasing velocity as time progresses.
Examples of uniform accelerated motion include:
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Free-falling object under the force of gravity: When an object is dropped from a height, it experiences a constant acceleration due to gravity, which makes the motion uniformly accelerated.
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Ball rolling down a frictionless slope: When a ball rolls down a sloped surface, it experiences a constant acceleration due to the force of gravity and the slope.
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Bicycle rolling downhill when the brakes are applied: When a bicycle rolls downhill, the brakes are applied to slow down the bicycle, which causes a constant acceleration and makes the motion uniformly accelerated.
The uniform acceleration graphs for uniformly accelerated motion are straight lines, while the non-uniform acceleration graphs are curved.
The motion of an object in uniform acceleration can be described by the following equations:
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Velocity equation:
v = u + at, wherevis the final velocity,uis the initial velocity,ais the acceleration, andtis the time taken by the object. -
Distance equation:
s = ut + 1/2at2, wheresis the distance,uis the initial velocity,ais the acceleration, andtis the time taken by the object. -
Final velocity equation:
v2 = u2 + 2as, wherev2is the final velocity,u2is the initial velocity,ais the acceleration, andsis the distance.
These equations are used to describe the motion of an object under uniform acceleration.
In conclusion, uniform accelerated motion is a type of motion where an object moves in a straight line with a constant acceleration and zero difference between initial and final velocities. It is characterized by the object's velocity changing at a constant rate, and examples include free-falling objects, balls rolling down slopes, and bicycles braking. The motion can be described using the velocity, distance, and final velocity equations.
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Description
Learn about the concept of uniform accelerated motion, where an object moves in a straight line with constant acceleration. Explore examples and equations related to uniformly accelerated motion, including velocity, distance, and final velocity equations.
