physics tutorial speed calculations with answers
TRANSCRIPT
(incl. calculations)
distance travelled (m)
time taken (s)
average speed = ? (m/s)
(km/hr) (mi/hr)
(53 min x 60 s/min)
8 km x 1000 m/km
distance travelled
time taken
average speed =
8 km
53 mins
=
2.5 m /s =
8000 m
3180 s
=
distance travelled
time taken
average speed =
30 km
25 min
(25 min x 60 s/min)
30 km x 1000 m/km =
20 m /s =
30,000 m
1,500 s
=
The speed of an object is how fast it is
travelling.
Objects’ speed changes over time
• can calculate average speed
• = distance / time
Review
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