Question

The diameter of the wheelof bus is 1.4m .the wheel makes 10 revolution in 5 seconds. The speed of the bus in m/s is

Answer 1

Answer:

diametre = 1.4m

so, radius, r= 0.7 m

so,the distance make by the wheel in in one revolution is

=2πr

= 2.22/7 .0.7

= 4.4 m

therefore 5:00 revolution Makes is equal to 4.4 into 10 equal to 44 metre

so it moves in 5 second is 44 metre

therefore in one second it moves 44 by 5 metre

i.e. 8.8m

therefore the speed of the bus is 8.8 metre per second