16. Define the following. (3marks)
(a) motion (b) rest (c) acceleration
Answers
Motion- Change in location with respect to surroundings.
Rest- Being unchanged in location terms
Acceleration- Control over velocity or speed.
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MOTION. motion is the change in position of an object with respect to its surroundings in a given interval of time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, time, and speed.
REST.rest is the state an object being stationary relative to a particular frame of reference or another object; when the position of a body with respect to its surroundings does not change with time it is said to be "at rest".
ACCELERATION.acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
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