Question

Explain speed ...........​

Answer 1

Answer:

SPEED →

the rate at which someone or something moves or operates or is able to move or operate.

•What is speed and how is it calculated?

→A: For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is.

•What is the symbol of speed?

→Units of speed include: metres per second (symbol m s−1 or m/s), the SI derived unit; kilometres per hour (symbol km/h).

•What is speed measured in?

→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.

Answer 2

Answer:

Speed is the distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the velocity vector. ... Lower speed means it is moving slower. If it isn't moving at all, it has zero speed.

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