A rotating object makes 5/6 of a revolution in 7/10 second. Find the approximate speed in revolutions per second. Write your answer as a decimal to the nearest hundreth.

1.19 revolutions per second.

Step-by-step explanation:

Given:

A rotating object makes 5/6 of a revolution in 7/10 second.

To find:

Find the approximate speed in revolutions per second ?

Solution:

As here given that a rotating object makes 5/6 of a revolution in 7/10 second,

we will have to find that in one second how many revolution does this object make:

By unitary method:

In second, a rotating object makes =  revolution

In 1 second, a rotating object makes =

Therefore, the approximate speed of object is 1.19 revolution per second.

We can also find by,

We can use any one to solve this type of question:

Finally, the approximate speed is 1.19 revolutions per second.

70

step-by-step explanation: