Question

„ Imagine that you are in a car
, driving along a main road.
Along the road, there are signs telling you how far it is to the next town.
At the roadside, there may be marker posts every 100 metres.
Describe how you could use these roadsigns to work out the average speed of
the car.​

Answer 1

Solution:Average speed v:v=st(1),where s is all distancein meters, t is all timein seconds.Of (1) average speed of the car:v=1oo+100+⋯+100t1+t2+⋯+tn(2),where t1is timein seconds, duringwhich the car passes thefirst 100 m, t2is timein seconds, duringwhich the car passes the second 100 m, tnis time in seconds, duringwhich the car passes the latest 100m