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.
An object must change its speed, change its direction, or both in order to be accelerating. Any of these changes will result in a non-zero acceleration.
No, a body moving at a constant speed cannot be accelerating. Acceleration is defined as a change in velocity over time, so if the speed of the body remains constant, there is no acceleration. For example, a car moving at a steady 60 mph on a straight road is not accelerating.
No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.
True. Acceleration is any change in velocity, including a change in direction. So when you change direction, you are indeed accelerating.
Force is directly related to the change in momentum of a body, as described by Newton's second law of motion. The force acting on an object causes a change in its momentum by accelerating or decelerating it. The greater the force applied, the greater the change in momentum experienced by the body.
An object must change its speed, change its direction, or both in order to be accelerating. Any of these changes will result in a non-zero acceleration.
No, a body moving at a constant speed cannot be accelerating. Acceleration is defined as a change in velocity over time, so if the speed of the body remains constant, there is no acceleration. For example, a car moving at a steady 60 mph on a straight road is not accelerating.
No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.
True. Acceleration is any change in velocity, including a change in direction. So when you change direction, you are indeed accelerating.
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.
Force is directly related to the change in momentum of a body, as described by Newton's second law of motion. The force acting on an object causes a change in its momentum by accelerating or decelerating it. The greater the force applied, the greater the change in momentum experienced by the body.
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.
Friction force
A moving body must undergo a change in its velocity to show acceleration. Velocity is a vector quantity that includes both speed and direction so any change in speed, direction, or both constitutes a change in velocity, resulting in acceleration.
Yes. Even though its speed doesn't change, its velocity does change, therefore it is accelerating.
by accelerating
No, you are not accelerating if you are traveling in a constant direction with a constant speed. Acceleration is the rate of change of velocity, so if your velocity remains constant, there is no acceleration.