are .....plz bta do le.... unke answrs. ....5 marks each
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are .....plz bta do le.... unke answrs. ....5 marks each
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Speed:
(i) Speed is defined as the distance travelled by the body per unit time
(ii) Speed =
timetaken
distancetravelled
(iii) Speed is always positive
Velocity :
(i) Velocity of a moving body is defined as is rate of change of its position with time in a particular direction
(ii) Velocity =
timetaken
displacement
(iii) Velocity is a vector quantity
(iv) Velocity can be negative.
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