The number of revolutions of two pulleys is inversely proportional to their diameters. If a 24-inch diameter pulley making 400 r

Question

3 years ago

8

evolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.
133 1/3
800
1,200 ...?

2 answers:

bixtya [17] · Answer 1 · 2022-03-14T14:20:57+03:00

8 0

The correct answer is 1200.

nalin [4] · Answer 2 · 2022-03-14T16:10:51+03:00

<h3><u>Answer;</u></h3>

1200

<h3><u>Explanation;</u></h3>

<em>Then; dn=k </em>

We can use the relationship to find the unknown, k:

<em>k = dn </em>

<em>k = (24)(400) = 9600 </em>

Then use k to find the unknown n:

<em> k= dn </em>

<em>9600 = 8n </em>

<em>n = 1200 </em>

<u> = 200 rpm</u>