Question

Which of the following is a derived quantity ?
(1) Mass (2) Length (3) Time (4) Speed

Answer 1

Answer:

Units of physical quantities can be expressed in terms of fundamental units and such units are called derived units.

So speed is the derivative of distance and time.

Hence option 4 is correct.

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Answer 2

Answer:

The Quantity which is derived among the given options is Speed. Speed is the only quantity here which is derived from two basic quantities - Distance as well as Time. Other ones are the basic quantities.

Explanation:

Speed refers to how fast an item moves from one position or region to another.

Speed is the rate at which an item's position changes, measured in meters in keeping with second. For example, if an item begins offevolved at the origin, and then moves 3 meters in 3 seconds, its speed is one meter in keeping with second. The equation for speed is simple: distance divided via way of means of time. We take the distance traveled (for instance three meters), and divide it by the time (3 seconds) to get the speed (one meter in keeping with second).

Whatever speed is, it includes each distance and time. "Faster" approach either "farther" (greater distance) or "sooner" (much less time).

Doubling one's speed might suggest doubling one's distance traveled in a given amount of time. Doubling one's speed might additionally suggest halving the time required to travel a given distance.