Acceleration is any change in velocity. Velocity is the measurement of both speed and direction.
How rapidly you vary your speed in a particular direction is measured with a property called acceleration.
Inertia.
Linear motion is a motion in a straight line but velocity can travel in any direction the equation for linear motion is and velocity is the rate of change of positions
Because they are changing mediums.
When its speed changes, when it turns changing its direction of travel or when both occur.
An object in motion has inertia and momentum. Inertia is what's keeping the object in a constant motion. Momentum is the mass of the object times it's velocity it travels in. If the object makes a sudden change, it loses its inertia and a force is applied in the opposite direction (or whatever direction its changing in). The force would be negative if the object is traveling in a positive direction. If the object starts to travel in a circular motion, centripetal force occurs tangent toward the origin. Since motion is dependent on velocity, its considered a vector, which has a positive and negative direction depending on the x,y, and z axes.
Inertia.
The average speed of motion is when speed is changing. Speed equals total distance divided by total travel time. Velocity is the speed and direction of an object's motion.
Linear motion is a motion in a straight line but velocity can travel in any direction the equation for linear motion is and velocity is the rate of change of positions
For any object to change its motion, it must be accelerated and experiences acceleration. Note that a change in motion is a change in velocity. The object either speeds up, slows down or changes direction, and one of those or some combination is a velocity change. Only acceleration will change velocity. We need to offer the reminder that velocity is speed with a direction vector attached to it. An object can travel at a constant speed and be changing direction. This is a change in velocity because of the change of direction. And a change in velocity is, as stated, initiated by acceleration.
Because they are changing mediums.
When its speed changes, when it turns changing its direction of travel or when both occur.
An object in motion has inertia and momentum. Inertia is what's keeping the object in a constant motion. Momentum is the mass of the object times it's velocity it travels in. If the object makes a sudden change, it loses its inertia and a force is applied in the opposite direction (or whatever direction its changing in). The force would be negative if the object is traveling in a positive direction. If the object starts to travel in a circular motion, centripetal force occurs tangent toward the origin. Since motion is dependent on velocity, its considered a vector, which has a positive and negative direction depending on the x,y, and z axes.
Of course, since velocity is a vector quantity and speed is a scalar quantity, velocity has something speed does not: direction. Thus, an object can travel at the same speed by has a changing direction of movement, and therefore a changing velocity. For instance, a ball on a string moving in a circle at the same speed is constantly changing its velocity, which results in its path of motion.Yes. Velocity is (speed and direction of motion). If direction changes, then velocitychanges, even if speed is constant.Examples:-- Car going around a curve at a constant speed has changing velocity.-- Anything traveling a circular path at a constant speed has changing velocity.
Consider a graph paper with Axis X and Y. Cart travel in X direction but suddenly, the cart change direction and so it must reduce velocity on X and increase velocity on Y. Net velocity might be the same but small acceleration and deceleration is apply in 2 dimension motion.
That is correct. Polarization is possible only when the direction of vibration is perpendicular to the direction of the wave travel, such is in light. In sound waves, the direction of vibration (compression) is the same direction as the direction of the travel of the sound wave, and therefore polarization is not possible.
No.When an object accelerates its velocity is changing.As velocity is defined as speed with direction, its velocity changes ifeither the speed or the direction of travel changes.As its velocity is changing it is technically accelerating (or possibly 'decelerating'if you are an American)
Longitudinal waves are waves that have the same direction of vibration along their direction of travel, which means that the vibration of the medium (particle) is in the same direction or opposite direction as the motion of the wave. Mechanical longitudinal waves have been also referred to as compressional waves or compression waves