Today’s Agenda on Units. Primary and Secondary Physical Quantities and Units Unit Conversion. Standard We Will Use. We will follow the International System of Units – also known as the SI standard
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We will follow the International System of Units – also known as the SI standard
It includes: Distance measured in meters (m)Mass measured in kilograms (kg)Time measured in seconds (s)Charge measured in Coulombs (C)Temperature measured in degrees Kelvin (o K or K)
That means we’ll need to convert other measures to our standard
Quick in-class exercise:
a.) A tractor-trailer truck is traveling at 60 miles per hour eastbound on Interstate 195 towards the North Dartmouth exit. Determine the speed of the truck
i.) in feet per second
ii.) in meters per second
iii.) in kilometers per hour.
b.) What is the maximum legal speed in centimeters per hour in a 55 miles per hour posted speed zone?