Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. ... Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.
acceleration, rate at which velocity changes with time, in terms of both speed and direction.A point or an object moving in straight line is accelerated even if the speeds up or slows down. Motion on a circle is accelerated even if the speed is constants, because the direction is continually changing.
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Answer:
Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. ... Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.
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acceleration, rate at which velocity changes with time, in terms of both speed and direction.A point or an object moving in straight line is accelerated even if the speeds up or slows down. Motion on a circle is accelerated even if the speed is constants, because the direction is continually changing.