A moving body can be accelerated by applying a force. This force will act to increase velocity, decrease velocity or change the direction the body is moving. All three of these are acceleration.
It will either speed up, slow down, change direction, or both speed up and change direction, or slow down and change direction.
the speed of the body
Zero acceleration means no change in velocity and no force on the zero accelerating body.
A moving body must undergo a change of position.
You can be accelerating and traveling at a constant speed if you change directions.
Velocity
change in direction=change in acceleration
Zero acceleration means no change in velocity and no force on the zero accelerating body.
A moving body must undergo a change of position.
a body is accelerating if it is speeding up faster and faster. Acceleration is the change in velocity. or the change in speed. Slowing down is also acceleration but it is negative acceleration or de acceleration.
You can be accelerating and traveling at a constant speed if you change directions.
No. An object that has no net force on it will simply not be accelerating. It can be in motion, but it can not have any change in its velocity.
Velocity
change in direction=change in acceleration
It depends ... If the body is accelerating uniformly with a constant acceleration a ....then the Force is a constant force.... But if it is accelerating non uniformly....then the Force is not constant...The 2nd law says F=m*a where m is mass of the body...
Friction force
Yes. Even though its speed doesn't change, its velocity does change, therefore it is accelerating.
Acceleration is not a change in speed, but a change in velocity. Velocity is, unlike speed, a vector, and so as the direction of velocity changes there must be an acceleration to cause that change.
If you are traveling at a constant speed with changing direction there is a change in velocity, so you are accelerating.