0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the same instantanoeus speed and average speed?
different on constant and instantaneous speed
To justify with calculation average speed is equal to instantaneous speed?
Only if speed is constant. There can be no acceleration if the average speed is equal to the instantaneous speed.
Why does a car traveling at constant speed can accelerate while a car at constant velocity connot?
The question is inherantly flawed. A car traveling at a constant speed cannot accelerate, if it could it's speed would not be constant. "Constant speed" means that speed is not increasing or decreasing but remain consistent over time. For example, if you cover 10 feet during each second, your speed is constant. "Constant velocity" implies constant speed, but it has an additional constraint: you can't change your direction. If you travel constantly at 10 feet per second in a straight line, then your speed is constant and your velocity is constant. But if you travel constantly at 10 feet per second in a wiggly line (or a circle, or anything not straight), then your speed is constant but your velocity is NOT constant. If you travel at a constant speed but change direction, velocity is changed. Or if you travel in the same direction but change the speed, velocity is changed. Average speed is is easier: distance/time So, your question should read: Why can a car traveling at an average speed accelerate, but a car traveling at constant speed cannot? Or Why am I asking the wrong questions?
Why is the actual speed usually different from its average speed?
car is not always moving at constant speed
What is speed does not change over time called?
A change in speed is a change in velocity - so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. When a force acts on an object; it may change the object's acceleration (speed, direction, or both).
Can you use average speed to calculate the speed of an object that is moving at a constant speed?
Yes. If an object is moving at a constant speed the average speed and the constant speed are the same.
What is the difference between constant speed and average speed?
Average speed is a representation of all your speeds between two points, constant speed is just unchanging speed.
Will the speed per hour be exactly alike with the average speed?
No.
What is the formula of constant an average speed?
average distance/average time
What is the same instantanoeus speed and average speed?
different on constant and instantaneous speed
When are speed and average speed the same?
Average speed is an average value of speed over a given time. If your speed is constant (not changing), then your average speed will equal your speed at any given moment in time.
To justify with calculation average speed is equal to instantaneous speed?
Only if speed is constant. There can be no acceleration if the average speed is equal to the instantaneous speed.
The difference between average speed and constant speed?
Average speed allows you to change the instantaneous speed throughout the travel time, while during constant speed, one keeps there instantaneous speed at the same numberAverage speed is when a car is moving with a speed of 25 miles per hour. Constant speed is speed maintained consistency over time.
How does time affect average speed when distance is a constant?
Time is inversely proportional to speed.
How are average speed and instantaneous speed alike?
Average speed and instantaneous speed are both measurements of the speed of an object. The instantaneous speed measures how fast the object is going at a particular moment, while average speed shows how fast the object was moving in total over time.
What does a straight line slanting up from left to right on a distance versus time graph show?
It represents that the object is remaining at a fixed distance. Typically that means it is not moving.
Why does a car traveling at constant speed can accelerate while a car at constant velocity connot?
The question is inherantly flawed. A car traveling at a constant speed cannot accelerate, if it could it's speed would not be constant. "Constant speed" means that speed is not increasing or decreasing but remain consistent over time. For example, if you cover 10 feet during each second, your speed is constant. "Constant velocity" implies constant speed, but it has an additional constraint: you can't change your direction. If you travel constantly at 10 feet per second in a straight line, then your speed is constant and your velocity is constant. But if you travel constantly at 10 feet per second in a wiggly line (or a circle, or anything not straight), then your speed is constant but your velocity is NOT constant. If you travel at a constant speed but change direction, velocity is changed. Or if you travel in the same direction but change the speed, velocity is changed. Average speed is is easier: distance/time So, your question should read: Why can a car traveling at an average speed accelerate, but a car traveling at constant speed cannot? Or Why am I asking the wrong questions?
