STEM Academy: Velocity

Mathematically, what does the word "per" typically signify?

• Divided by

• Additional

• A simple arrangement

• More than

Jamaica's Usain Bolt set the work record for the 100 meter dash in 2009. His time was 9.58 seconds. What was his average speed?

• 20.1 m/s (45 mph)

• 8.3 m/s (19 mph)

• 10.4 m/s (23 mph)

• 15.7 m/s (35 mph)

In your own words, what is the difference between speed and velocity?

Velocity is speed but with a possible sign. What is distance with a possible sign?

• Height

• Displacement

• Width

• Amount travelled

A 6.35 cm car drives through a photo gate. The gate registers state changes at 0.1434s and 0.1517s. What is the speed (in m/s) of the car? Round to the nearest tenth and answer WITH JUST THE NUMBER (and decimal point).

A 6.35 cm car drives through a photo gate. The gate registers state changes at 0.9291s and 0.9235s. What is the speed (in m/s) of the car? Round to the nearest tenth and answer WITH JUST THE NUMBER (and decimal point).