Question

differentiate between speed and velocity ?when is body said to have uniform velocity? Z how can we describe the position of an object? Illustrate with suitable example

Answer 1

Hey ✌

Here differences between speed and velocity:-

✏ Speed is the distance travelled by a body per unit time with irrespective of direction whereas velocity is the distance travelled by a body per unit time with respect to a time.

✏ Speed is a scalar quantity where is velocity is a vector quantity.

✏ Speed can not be zero at any situation but velocity can be zero at a certain situation.

✏ The average speed is the magnitude of the average velocity. Since the average velocity is zero (vector) m/s, the magnitude of this is also zero meters per second.

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Answer 2

Answer:

(a) uniform velocity

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when the body covers equal diaplacements in equal intervals of time , it is said to have uniform velocity

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(b) variable velocity

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when the body covers unequal diaplacements in equal intervals of time , it is said to have variable velocity

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Explanation: