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Yes it can. Especially if it's riding the periphery of a roulette wheel, glued to the
rim of a car's tire, or spinning around your head on the end of a yo-yo string.
Velocity consists of speed and direction. If the direction of motion is changing
then the velocity is changing, even if the speed is constant.
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∙ 13y ago
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The difference in speed and velocity is that a measure of velocity must include?
In the study of kinematics, 'acceleration' means any change in the speed or direction of motion.
How would the velocity of the book change if the applied force were equal to the sliding friction force?
The book slides with constant velocity.
Can a body have zero average velocity but a nonzero average speed give example?
The short answer is no it can't. There are a few more complex situations where you could argue the oposite: 1/ A race car doing laps around a circuit could have an average speed over 1 lap of 200mph but would have an average velocity of zero. This is because speed is a scalar measurement (how fast an object is moving) whilst velocity is a vector measurement (how fast an object is changing its position) Since the race car is at the start/finish line at the start and end of the lap it is in the same position so its average velocity is zero. Of course at any given moment during its lap its velocity would not be zero so I don't think this counts. Average velocity can be zero whilst average speed is not zero but "average" is the important word and isn't included in the question. 2/ Frames of reference - The Earth is travelling around the sun at a speed of roughly 67,000 mph (about 100,000 kph.) At what speed is a book sitting still on a table moving? If we use the Earth as a frame of reference then the book has a speed and velocity of zero. If we use the Sun as a frame of reference then the book is actually moving at a speed of about 67,000mph. (Plus or minus a bit for the rotation of the Earth about its axis.) If we use different frames of reference then a body can have zero velocity in one and non-zero speed in another. I'm inclined to think this is "cheating" and that the answer to the question remains no.
If you push horizontally on your book with a force of 1 N to make the book slide at constant velocity how much is the force of friction on the book?
No
A physics book of unknown mass is dropped 4.85 m What speed does the book have just before it hits the ground?
Acceleration of an object, to a point is constant. The SIMPLE answer is beloow. Accelerating object will change their velocity so... 0 second = 0 velocity 1 second = 4 m/s 2 seconds = 8 m/s 3 seconds = 12 m/s and so on until terminal velocity... so the simple answer to your question is... just over 1 second. To get an exact answer will take more excating calculation as this is a curve.
A science book is being pushed across a table Can the book have a constant speed and a changing velocity?
It can have a constant speed, and a changing velocity, but it cannot have the two at the same time. Remember: Velocity = speed with a directional component.
What includes velocity?
Velocity includes speed and direction. Source- Glencoe book -Ashaparekh44
The difference in speed and velocity is that a measure of velocity must include?
In the study of kinematics, 'acceleration' means any change in the speed or direction of motion.
Is it possible for a book moving at a constant speed to have a change in velocity?
Yes, if an unbalanced force acts on the book, such as friction, which will slow the book down and eventually cause it to stop.
Is a book at rest on a table with gravity pulling down an example of acceleration?
Acceleration is zero in this case. Acceleration means the velocity is actually changing.
What does a venn diagram look like for velocity acceleration average speed speed inertia momentum?
Look it up on Google! This website is not an answer book. People are so lazy... So are you...it is called Answers.com right?!??!
How would the velocity of the book change if the applied force were equal to the sliding friction force?
The book slides with constant velocity.
Can a body have zero average velocity but a nonzero average speed give example?
The short answer is no it can't. There are a few more complex situations where you could argue the oposite: 1/ A race car doing laps around a circuit could have an average speed over 1 lap of 200mph but would have an average velocity of zero. This is because speed is a scalar measurement (how fast an object is moving) whilst velocity is a vector measurement (how fast an object is changing its position) Since the race car is at the start/finish line at the start and end of the lap it is in the same position so its average velocity is zero. Of course at any given moment during its lap its velocity would not be zero so I don't think this counts. Average velocity can be zero whilst average speed is not zero but "average" is the important word and isn't included in the question. 2/ Frames of reference - The Earth is travelling around the sun at a speed of roughly 67,000 mph (about 100,000 kph.) At what speed is a book sitting still on a table moving? If we use the Earth as a frame of reference then the book has a speed and velocity of zero. If we use the Sun as a frame of reference then the book is actually moving at a speed of about 67,000mph. (Plus or minus a bit for the rotation of the Earth about its axis.) If we use different frames of reference then a body can have zero velocity in one and non-zero speed in another. I'm inclined to think this is "cheating" and that the answer to the question remains no.
What is an example of a statics?
computer book car in a uniform velocity
How do you learn velocity triangles in turbo machines?
Read a book
What is a example of a statics?
computer book car in a uniform velocity
How Fiji is changing?
To answer this would require a book.
