11. FORMULAE & UNIT
• Since the formula is
Speed = Distance
Time
Then the unit for Speed must be a unit of
distance divided by a unit of time.
. For example
km/h
m/s
12.
13. RELATIONS
• By knowing any of the 2 variables , you can solve
for the third.
Distance = Speed * time
Time = Distance
Speed
Speed = Distance
Time
14. Uniform Speed
• If an object travels equal distances in
equal intervals of time the object has
uniform speed
• Eg: The Movement of hand of a clock
15. Non-Uniform Speed
• If the distance travel by an object
during equal intervals of time is
unequal, then the object has non
uniform speed.
• Eg: A ball rolling on the ground
16. Average Speed
• If the distance covered in different
intervals of time, in such situation we
have to mentioned the speed in
terms of average speed.
• Average Speed = Total Distance travelled
Total Time Taken
