speed and velocity-P2
- Created by: aleena147
- Created on: 01-11-19 23:22
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- speed and velocity
- scalar quantities
- speed
- distance
- mass
- time
- just the speed not the direction
- vector quantities
- velocity
- displacement
- force
- acceleration
- vector is a the speed and direction e.g. 30 mph due north
- usually positive and negative e.g. a car moving in one direction may have a velocity of 3 m/s but moving in the opposite direction it would be -3 m/s
- formula
- distance travelled= speed*time
- converting units
- km to m: 16*1000=16000
- 22ms to s: 22/1000=0.022s
- 8 hrs to s= 8*60=480*60=28 800
- scalar quantities
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