There is only acceleration if the car's velocity changes. If it moves at a constant velocity, then there is no acceleration.
If the speed is constant at 50 mph, then the acceleration is 0.
My interpretation is that the car and any motion, like the graph, do not exist.
The van that is moving from 20 mph to 35 mph
Acceleration is zero since 55 mph is velocity and it is constant. Acceleration is defined as the rate of change in velocity. The speed is the absolute value of velocity so it is also 55.
As long as the 30 minute are spent driving in a straight line, the acceleration is zero.
The answer depends on when "then" is.
Stepping on the brakes of a moving car is an example of
The car's acceleration is in forward direction.
false A car can have a negative acceleration and be speeding up. A negative acceleration determines the direction of the acceleration A car with forward acceleration will speed up in the forward direction A car moving forward with a negative acceleration will slow down A car not moving with a negative acceleration will speed up in the backward direction A car moving backward with a negative acceleration will speed up in the backward direction
If the speed is constant at 50 mph, then the acceleration is 0.
Is stepping on the brakes of a car acceleration. That would be deceleration.
No. Definitely not
Negative acceleration is the state of a body whose velocity in a specified direction is becoming smaller. If you apply the brakes while driving a car, the car (and you) will undergo negative acceleration in the direction in which the car was moving.
You need the initial and final velocities, and time interval to answer this question.
a car become positively active when we can notice that there is an acceleration.
"Constant rate" implies there is no acceleration - acceleration is zero.
the car could be traveling in a straight line and slowing down (negative acceleration), speeding up (positive acceleration) or maintaining constant speed (zero acceleration).