Question

no.5 highly explain ​

Answer 1

Step-by-step explanation:

Here you have to find the average speed of cyclist

Formula for average speed-

Total distance covered/Total time taken

Distance travelled in 1st hour = 1 km

Distance travelled in 2nd hour=0.6km

Distance travelled in 3rd hour=0.3km

Total time taken =3 hours (1+1+1)

Now

( 1+0.6+0.3 ) / 3 = Average speed (km/h)

1.8/3 = average speed (km/h)

0.6=average speed (km/h)

Hence, cyclist average speed was 0.6km /h

Converting 0.6km/h into m/s

(0.6 x 1000) / 3600.

(Multiplying with 1000 because 1000m in 1km)

(Dividing with 3600 because 3600s in 1hr)

=0.167m/s

Answer 2

average speed=$\frac{total distance }{total time }$

total distance =1+0.5+0.3=1.8 km

total time =3 hrs

average speed=$\frac{1.8}{3}$

average speed=0.6 km/hr

to convert km/ph to m'/s we MULTIPLY it by $\frac{5}{18}$

0.6 x $\frac{5}{18}$

==>0.16666 m/s