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22/10/2021 6:58 pm
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(a) Define speed. What is the SI unit of speed?
(b) What is meant by (i) average speed, and (ii) uniform speed?
1 Answer
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22/10/2021 7:02 pm
(a) Speed is defined as the distance travelled by a body per unit time. Its SI unit is m/s.
(b) (i) Average speed is the sum total of the distance travelled by a body divided by the total time taken to cover that distance.
(ii) Uniform speed refers to the constant speed of a moving body in which the body covers an equal distance in equal time intervals.