Which one among the following statements is CORRECT? -An object is in uniform motion when its acceleration is zero.   -The speed of an object in free fall motion remains constant during the entire duration of motion.   -The acceleration of an object in free fall motion is zero.   -When the velocity of an object is constant, its acceleration is not zero.

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –