Question

basanti has a cart whose wheels are making 4 revolution per second . diameter 77 cm find its speed

Answer 1

Answer:

Step-by-step explanation:

RADII.= 77/2 = 38.5

DIST. COVERED PER SECOND = 2*πR

2*22/7*77/2= 242CM/SEC

Answer 2

Its speed is  9.68 m/ sec

Step-by-step explanation:

1 m = 100 cm

Diameter of wheel = 77 cm

Radius of wheel =$\frac{77}{2}= 38.5 cm=0.385 m$

Circumference of wheel =$2 \pi r = 2\times \frac{22}{7} \times 0.385=2.42 m$

So, Distance traveled in 1 revolution = 2.42 m

Distance traveled in 4 revolution = 2.42 \times 4 = 9.68 m

So, Speed = 4 revolutions per second = 9.68 m/ sec

Hence  its speed is  9.68 m/ sec

#Learn more:

A wheel of a cart is making 4 revolution per second. If the diameter of the wheel is 84 cm , find the speed of the wheel in cm/sec.

https://brainly.in/question/2013404