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B
time
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C
distance travelled
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D
Displacement
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Solution
The correct option is A Speed
The speedmeter device is used to measure speed. A speedometer is also called as speedmeter. It is a gauge that measures and displays the instantaneous speed of a vehicle. Anyone can easily observe speedometer in bikes, cars etc which are used on daily basis by the majority of human beings. The electric speedometer was invented by the josif belusic.