All Questions
10 questions
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What does instantaneous velocity mean? [duplicate]
What does instantaneous velocity mean?
on google it says "Instantaneous means something happens very quickly, in a single moment. It's similar to the meaning of "instant", but most ...
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-2
votes
2
answers
1k
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What is closing speed?
what is closing speed? the only information google was able to give me, is that closing speed is when a car is approaching another car both at 30m/s the closing speed is 60m/s, so what exactly is ...
- 137
1
vote
6
answers
861
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Is velocity a vector quantity? [closed]
I've read that velocity is a vector quantity. Then why do most of the people when stating the velocity of an object never use direction? Most of them usually say that 'a car is moving at a velocity of ...
- 837
0
votes
1
answer
59
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Term for travel time per distance
Does the physics community have a term for the time per travel distance, $dt/dx$? I.e. the reciprocal of the speed. Runners call this their pace.
- 37
3
votes
4
answers
9k
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What is the difference between uniform velocity and constant velocity? [closed]
I think that uniform velocity implies constant speed but not constant direction. while constant velocity implies constant speed without any changes in direction.
Both tell us that there's no ...
- 41
19
votes
8
answers
11k
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The instant an accelerating object has zero speed, is it speeding up, slowing down, or neither?
This problem is from Khan Academy. Specifically for the blue point circled in red, the answer is that at this blue point, the object is neither speeding up nor slowing down. When I think about the ...
user225790
0
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3
answers
1k
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What would be the minimum velocity of a particle performing S.H.M.?
We were asked a simple question on a test:
What is the maximum and minimum velocity of a particle performing an SHM?
Note here that we're talking about a generic standard SHM here. If the maximum ...
1
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2
answers
13k
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If an object moves at constant speed, does it necessarily have constant velocity? [closed]
If an object moves at constant speed, does it necessarily have constant velocity?
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2
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5
answers
865
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Is there an agreed upon physics definition of the term 'speed'? For example, can it be negative?
The term speed is commonly defined as follows:
https://www.physicsclassroom.com/class/1DKin/Lesson-1/Scalars-and-Vectors
Speed, being a scalar quantity, is the rate at which an object covers ...
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1
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What is meant by negative direction of velocity? [duplicate]
What is negative velocity and negative direction of the velocity?
