Understanding Motion with Constant Acceleration - High School Physics
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A ball rolls to a stop after 
. If it had a starting velocity of 
, what is the deceleration on the ball due to friction?
A ball rolls to a stop after
We are given the initial velocity, time, and final velocity (zero because the ball stops). Using these values and the appropriate motion equation, we can solve for the acceleration.
Acceleration is given by the change in velocity over time:
We can use our values to solve for the acceleration.
We are given the initial velocity, time, and final velocity (zero because the ball stops). Using these values and the appropriate motion equation, we can solve for the acceleration.
Acceleration is given by the change in velocity over time:
We can use our values to solve for the acceleration.
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An object starts moving with a velocity, 
. If it accelerates in such a way so that the velocity doubles every second, what will be the velocity after 
?
An object starts moving with a velocity,
If the velocity doubles every second, and it starts with a velocity of 
, then after 
it would have a velocity of:
After 
it would have a velocity of:
After 
it would have a velocity of:
If the velocity doubles every second, and it starts with a velocity of
After
After
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A ball is dropped off of a cliff with an initial velocity of 
. If it is in the air for 
seconds, what will be its final velocity as it hits the ground?
A ball is dropped off of a cliff with an initial velocity of
The basic formula for final velocity is:
Since the ball starts at rest, we can simplify the equation by removing the initial velocity.
Since the acceleration on the ball will be the acceleration due to gravity, 
, and the time will be 
, as per the problem, we can insert these variables into the equation to get our answer.
The basic formula for final velocity is:
Since the ball starts at rest, we can simplify the equation by removing the initial velocity.
Since the acceleration on the ball will be the acceleration due to gravity,
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A box slides along the floor. If it starts with a velocity of 
, has a final velocity of 
, and has been sliding for 
, what is the average acceleration of the box?
A box slides along the floor. If it starts with a velocity of
Acceleration is the change in velocity over the change in time.
We are given the initial and final velocities, as well as the change in time. We can use these values to calculate the acceleration.
Acceleration is the change in velocity over the change in time.
We are given the initial and final velocities, as well as the change in time. We can use these values to calculate the acceleration.
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A baseball leaves a pitcher's hand at 
. When it crosses home plate 
later, it is moving at
. What is the deceleration due to air resistance?
A baseball leaves a pitcher's hand at
For this question, we will need to use the acceleration formula:
We are given the initial velocity, final velocity, and time. Using these values in the equation, we can solve for the acceleration.
Note that the acceleration is negative, showing that the ball is slowing down, or decelerating.
For this question, we will need to use the acceleration formula:
We are given the initial velocity, final velocity, and time. Using these values in the equation, we can solve for the acceleration.
Note that the acceleration is negative, showing that the ball is slowing down, or decelerating.
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What is the final velocity of a car that starts from rest and accelerates at 
for 
?
What is the final velocity of a car that starts from rest and accelerates at
To solve this problem use the equation:
We are given the acceleration and time, and we can assume the initial velocity is zero since the car starts from rest. Use these values to solve for the final velocity.
To solve this problem use the equation:
We are given the acceleration and time, and we can assume the initial velocity is zero since the car starts from rest. Use these values to solve for the final velocity.
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A car starts at rest and accelerates at a constant rate of 
. What is its velocity after 
?
A car starts at rest and accelerates at a constant rate of
Acceleration is equal to a change in velocity divided by a change in time.
.
Since the car starts at rest, the initial velocity is zero. We know the acceleration and the change in time. Using these values, we can solve for the final velocity.
We can plug in our given values and solve:
Acceleration is equal to a change in velocity divided by a change in time.
Since the car starts at rest, the initial velocity is zero. We know the acceleration and the change in time. Using these values, we can solve for the final velocity.
We can plug in our given values and solve:
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A car starts from rest, speeds up with constant acceleration and travels 100m in 5s. What is the final velocity and the acceleration of the car?
A car starts from rest, speeds up with constant acceleration and travels 100m in 5s. What is the final velocity and the acceleration of the car?
The easiest way to approach this problem is find the average velocity, multiply by 2 because the car started from rest, and then divide the final velocity by time to get the acceleration.
Average velocity:
Final velocity:
The final velocity is 
because the car started from rest. This is evident from the equation for average velocity if we solve for final velocity:
Acceleration:
The easiest way to approach this problem is find the average velocity, multiply by 2 because the car started from rest, and then divide the final velocity by time to get the acceleration.
Average velocity:
Final velocity:
The final velocity is
Acceleration:
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