T/F: the
highway patrol is more interested in average speed
. False – highway patrol is more interested in instantaneous speed. This involves direction of motion as well as how fast the object is going.
Why a speeding Offence is based on instantaneous speed rather than average speed?
this is a useful measure because
a car can be constantly changing speed e.g. stopping at traffic lights
. the instantaneous speed is the speed you read off of the speedometer and typically varies from moment to moment.
Does a car’s speedometer show instantaneous speed or average speed?
The speedometer of a car reveals information about
the instantaneous speed of your car
. It shows your speed at a particular instant in time. On the average, your car was moving with a speed of 25 miles per hour.
What is instantaneous speed?
Instantaneous speed is
the speed of an object in motion at a specific point in time
. This is determined similarly to average speed, but we narrow the period of time so that it approaches zero. If an object has a standard speed over a period of time, its average and instantaneous speeds may be the same.
Is it possible for average speed to be higher or lower than instantaneous speed?
Yes,
instantaneous speed and average speed can be equal
(and can be different). The simplest case is when a body has a constant speed. In this case, its instantaneous speed is the same at any moment and the average speed over any time interval has the same value.
When you look at your speedometer and it reads 60 mph this is your instantaneous speed True or false?
when you look at your speedometer and it reads 60 mph, this is your
instantaneous speed
. q info: The given vectors have opposite directions. Sum of 2 vectors in opposite directions is given by the difference of the quantities. The direction is in the direction of the quantity w/ largest absolute value.
What is an example of instantaneous speed?
Average. When a cop
pulls you over for speeding
, she clocked your car’s instantaneous speed, or speed at a specific point in time as your car sped down the road. ‘Instantaneous’ comes from the word ‘instant’ meaning only one specific moment.
What is the formula for instantaneous speed?
Instantaneous speed is a scalar quantity. For uniform motion, instantaneous speed is constant. In other words, we can say that instantaneous speed at any given time is the magnitude of instantaneous velocity at that time.
What is the difference between speed and instantaneous speed?
The rate of
change
of position with time is called speed. As an object moves, its speed may change accordingly. The speed of an object at any given instant is called an instantaneous speed.
When can the speed and average speed of a vehicle be equal?
The average speed and velocity of a vehicle can be equal only
when the distance is equal to the displacement
. That happens only when the path is a straight line.
How would an object have to move in order for the average speed to remain equal to the instantaneous speed?
Yes, instantaneous speed and average speed can be equal (and can be different). The simplest case is
when a body has a constant speed
. In this case, its instantaneous speed is the same at any moment and the average speed over any time interval has the same value.
At what time was the instantaneous speed equal to the average speed?
Average velocity is equal to the instantaneous velocity
when acceleration is zero
.
Which situation does not describe an acceleration?
An object with a constant acceleration should not be confused with an object with a
constant velocity
. Don’t be fooled! If an object is changing its velocity -whether by a constant amount or a varying amount – then it is an accelerating object. And an object with a constant velocity is not accelerating.
Is a scalar quantity that refers to how fast an object is moving?
Speed
is a scalar quantity that refers to “how fast an object is moving.” Speed can be thought of as the rate at which an object covers distance.
What is acceleration explain with example?
The definition of acceleration is a change in the rate of motion, speed or action. … An example of acceleration is
increasing your driving speed from 45 to 55 to merge with traffic.
What are 3 examples of speed?
An example of speed is a car being driven 45 miles per hour. An example of speed is
someone cleaning a room in 10 minutes
. An example of speed is how quickly a jaguar runs. Speed is defined as to help someone or something along, or move too quickly.
