A constant speed means that the acceleration is zero. The change in velocity over a given time interval is equal to the area under the acceleration graph over that interval.
Does constant acceleration mean constant speed?
Driving at a constant speed means that you are constantly driving at the same speed in the same direction. If you have constant speed, it means you have no acceleration. … If you’re traveling with constant acceleration, your speed is still changing, but it’s changing by a constant amount every second.
What does constant acceleration mean?
The change in the speed of a particle over time is called acceleration. … If the particle’s velocity is changing at a constant rate, then that rate is called constant acceleration.
Can an object have constant acceleration and zero velocity?
(a) An object with constant acceleration but zero velocity. The change in speed is called acceleration. … Hence we can say that an object is moving in a smooth circular motion with constant acceleration and velocity. (c) An object moving in a given direction with acceleration in the vertical direction.
What is the acceleration of a body moving with constant speed?
Acceleration is zero when the body is moving at constant speed.
What two factors affect acceleration?
The acceleration of an object depends on the mass of the object and the force exerted on it.
What is the difference between constant and zero acceleration?
Zero acceleration simply means that the speed doesn’t change over time, and no change in speed means that it doesn’t change in magnitude or direction. While a constant acceleration, for example g = 9.8 m/s^2, shows the change in velocity (either its velocity or its direction) with time.
What state is a body with constant acceleration but zero velocity in?
Answer: When an object is thrown up at maximum height, the object’s velocity becomes zero, but in this state there is still a constant acceleration due to gravity.
Can you have zero velocity and non-zero acceleration?
Yes. At constant speed, acceleration is zero. For example, a car traveling in a straight line at a constant speed of 90 km/h has non-zero speed and zero acceleration. … Its acceleration changes in magnitude and direction as the elevator starts and stops.