Name: Another Example of a Distance-time Graph
Uploaded: 2019-07-19
Duration: 3 min 13 s
Description: You know that speed is the rate of change of distance. This might make you wonder if an object’s speed can be found from its distance-time graph. The answer...

Question

One way to find the speed of an object is to measure the time it takes to travel a measured distance. The table shows the three quantities involved.
Complete the table as follows:
In the second column, give the SI unit for each quantity (name and symbol).
In the third column, give some other, non-Sl, units for these quantities.
In the fourth column, name suitable measuring instruments for distance and time.

Quantity	SI unit (name and symbol)	Non SI units	Measuring instrument
Distance
Time
Speed

Accepted Answer

Quantity SI unit (name and symbol) Non SI units Measuring instrument

Distance metre ( $m$ ) kilometre measuring tape

Time seconds ( $s$ ) hour clock

Speed metre per second ( $m / s$ ) kilometre per hour speedometer

Speed is a scalar quantity that refers to "how fast an object is travelling," or the rate at which an object travels a given distance. A fast-moving object moves quickly and covers a considerable distance in a short period of time.

David Sang and Darrell Hamilton Solutions for Chapter: Describing Motion, Exercise 1: Exercise 2.1

David Sang Physics Solutions for Exercise - David Sang and Darrell Hamilton Solutions for Chapter: Describing Motion, Exercise 1: Exercise 2.1

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