Linear velocity is the rate of change of an object's position along a straight line. It is a measure of how fast an object is moving in a specific direction.
The formula S/t, or distance divided by time, is used for calculating average linear velocity. It is used when the object's speed is constant over the entire period of time.
The formula R*w, or radius multiplied by angular velocity, is used for calculating instantaneous linear velocity. It is used when the object's speed is changing over a short period of time, such as in circular or rotational motion.
Linear velocity is the rate of change of an object's position along a straight line, while angular velocity is the rate of change of an object's angular position or rotation around a fixed point. Linear velocity is measured in units of distance per time, while angular velocity is measured in units of angle per time.
Linear velocity and speed are closely related, but they are not the same. Speed is a scalar quantity that measures how fast an object is moving, while linear velocity is a vector quantity that measures both the speed and direction of an object's movement. This means that two objects can have the same speed, but different linear velocities if they are moving in different directions.