Question

The radius of the wheel of vehicle is 70cm. The wheel takes 10 revolution in 5 seconds. Than speed of vehicle is?

Please answer fast ​

Answer 1

Step-by-step explanation:

$speed = \frac{distance}{time} \\ speed = \frac{10}{5} \\ speed = 2m\ \: per \: second$

Answer 2

Answer:

speed= distance/ time

i.e.,speed= {n × circumference of the wheel) / 5

or, speed = n. (2 × 3.14 × r) /5

or, speed= 10×2×3.14 × 0.7 /5

or,speed ~ 8.792m/s

Here, we assume....

1)no. of revolutions = n

we have changed the radius from cm to m...

2) 70 cm = 0.7 m

3) circumference of the circle = 2 pie r