Question

The diameter of the wheel of a bus is 1.4 m The wheel makes 10 revolutions in v
seconds. Find the speed of the vehicle​

Answer 1

Step-by-step explanation:

speed = distance

time

distance = circumference of the wheel x no. of. revolutions

circumference = 2πr ( r = diameter )

2

= 1.4 / 2 = 0.7m

= 2 x 22 x 0.7

7

= 2 x 22 x 0.1

= 4.4m

Distance = 4.4x10

= 44m

speed = 44 meters / second^2

v

Answer 2

The speed of the vehicle​ is 44 v m/s

Step-by-step explanation:

Diameter of wheel = 1.4 m

Radius of wheel =$\frac{1.4}{2}=0.7 m$

Circumference of wheel = $2 \pi r = 2 \times \frac{22}{7} \times 0.7=4.4 m$

Distance traveled in 1 revolution = 4.4 m

Distance traveled in 10 revolutions = $4.4 \times 10 = 44 m$

We are given that It covers 10 revolutions in v seconds

So, it covers 44 m in v second

Speed = $Distance \times Time = 44 \times v = 44 v m/s$

Hence the speed of the vehicle​ is 44 v m/s

#Learn more:

The radius of A wheel of a bus is 70cm the wheel makes 10 revolution in 5 seconds The speed of the bus is

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