The acceleration changes if speed or direction changes
Wiki User
∙ 12y agoAcceleration is a direction plus a speed. If either changes then the acceleration changes.
Consider velocity as consisting of a speed, and a direction. If any of the two changes - that is, if either the speed or the direction changes - then the velocity changes.
Velocity is speed in a direction or speed at an angle. The velocity changes when the speed or angle changes.
No. Velocity is the present speed and direction of motion.If speed or direction changes, then that's 'acceleration'.
Yes. The velocity changes when the direction of motion changes, because the definition of 'velocity' is 'speed and the direction'. If either speed or direction changes, then we say the velocity has changed. Notice that if the direction changes, then the velocity changes even if the speed doesn't. "Velocity" is not just a bigger word that you use for 'speed' when you want to sound smart. They mean different things.
Acceleration is a direction plus a speed. If either changes then the acceleration changes.
Consider velocity as consisting of a speed, and a direction. If any of the two changes - that is, if either the speed or the direction changes - then the velocity changes.
Velocity is speed in a direction or speed at an angle. The velocity changes when the speed or angle changes.
No. Velocity is the present speed and direction of motion.If speed or direction changes, then that's 'acceleration'.
The rate at which speed changes, and the direction in which it changes.
Yes. The velocity changes when the direction of motion changes, because the definition of 'velocity' is 'speed and the direction'. If either speed or direction changes, then we say the velocity has changed. Notice that if the direction changes, then the velocity changes even if the speed doesn't. "Velocity" is not just a bigger word that you use for 'speed' when you want to sound smart. They mean different things.
-- "Speed" is the rate at which distance changes. -- "Velocity" is speed along with the direction of motion. -- "Acceleration" is the rate at which velocity changes, including the direction of the change.
velocity
Changes in speed or direction
A force.
Acceleration
Yes. Acceleration is the change in velocity, and velocity is a vector, which means it has direction. Because an object undergoing uniform circular motion is changing direction, it is changing velocity, and thus, accelerating.