The van that is moving from 20 mph to 35 mph
If the speed is constant at 50 mph, then the acceleration is 0.
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.
a = (vf - v0)/Δt 10 mph/s = (45 mph - 20 mph)/Δt Δt = 2.5 s
-10 mph/sec
4,815 mph
If the speed is constant at 50 mph, then the acceleration is 0.
if an object is moving without any net force or acceleration, it is moving at constant speed, or constant velocity. For example a satellite orbiting the earth is moving at constant speed, a car traveling at 60 mph, a wind of 20 mph. etc.
There is no such thing as 20 mph acceleration. 20 mph is a velocity. Acceleration is expressed as velocity per unit time e.g. mph per second or mph per minute etc.
The bus, as there is a much larger moving mass.
The magnitude of the velocity will be constant however the direction will be constantly changing. The acceleration will remain constant towards the centre of the circle
As an example, a car moving at 20 mph per hour in a circular path does not have a constant velocity because its direction changes. Hence, the car is considered to be undergoing an acceleration.
when the MPH goes up
8
8
0 Zero
800 mph
2 secs