Question

1 6. The radius of a wheel of a rickshaw is 23.1 cm. If the wheel makes 60 rotation in one minute, the rickshaw will travel rs in 30 minutes. (assume ri = 22/7) O(a) 2513.5 square meter O O (b) 2613.6 square meter O (c) 2633.6 square meter O (d) 2614.6 square meter​

Answer 1

Distance covered in one rotation = circumference of wheel =2πr

=2×

7

22

×70

=440cm

Distance covered in 300 rotation =300×440

=132000=

100000

132000

=1.32km

Given that distance of 1.32km is covered in 5 minutes or

60

5

hour.

Therefore,

Speed of cycle =

time

distance

=

(

60

5

)

1.32

=

5

1.32×60

=15.84km/hr