Question

Arrange the following speed in increasing order a)a athletes running in speed of 10m per second b)a bicycle moving at a speed of 200m per minute c) a scooter moving at a speed of 30 km per hour

Answer 1

We know that
Speed=distance/time
a) athlet's speed = 10 m/s
b) bicycle speed = 200 m / 60 s. Since 1min = 60s
= 10/3 = 3.33 m/s

c) scooter speed = 30 x 1000 m / 3600 s.
Since 1k = 1000 n 1hr = 3600 s
= 25/3 = 8.33 m/s
It's clear that 10>8.33>3.33
Therefore, speed of athlete > speed of scooter > speed of bicycle

Answer 2

Explanation:

Speed of athlete V

a

=10 m/s

Speed of bicycle V

b

=

60

200

=66.67 m/s

Speed of scooter V

s

=30 km/h=30×

18

5

=8.33 m/s

the final order, (iii),(i),(ii)