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veena
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A runner accelerates to a velocity of 4.15 m/s due west in 1.5 s.His average acceleration is 0.640 m/s also directed to the west . What was his velocity when he began accelerating ?
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Velocity is a measure of an object's speed and direction of motion. It is a vector quantity, meaning it has both magnitude (speed) and direction.
Acceleration is the rate of change of velocity over time. It can be described as how quickly an object's speed or direction is changing.
Velocity is calculated by dividing the distance traveled by the time it took to travel that distance. It is expressed in units of distance per time, such as meters per second or miles per hour.
Acceleration is calculated by dividing the change in velocity by the time it took for that change to occur. It is expressed in units of velocity per time, such as meters per second squared or miles per hour per second.
Velocity and acceleration are related in that acceleration causes a change in velocity. An object with a constant velocity has no acceleration, but an object with a changing velocity (speeding up, slowing down, or changing direction) has acceleration.