Question

Q4. Define speed what is S. I unit of
speed .write the the formula to calculate the speed of an object

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Answer 1

Answer:

Speed and velocity are both measured using the same units.The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second.

Speed - It is simply defined as the rate at which an object covers a given distance in a particular period of time. It is a scalar quantity. S.I unit of speed is metre per second .

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Answer 2

• Speed refers to how fast an object is moving. It is the rate at which an object covers distance. It is a scalar quantity.
• S. I. unit of  speed is m/s
• Speed= distance/ time