Question

What is the mechanical advantage of the simple machine pictured?

A. 8.3
B. 14.7
C. 1.9
D. 20.4

Answer 1

`D.\ 20.4`

Step-by-step explanation:

The simple machine in the attachment is a screw; so, I'll list the given parameters using related terms

Given

Radius of the screw (r) = 2.6m

Pitch (P) = 0.8m

Required

Calculate the Mechanical Advantage (M.A)

M.A is calculated as thus;

`MA = (2\pi r)/(P)`

Substitute 2.6 for r; 0.8 for P and 3.14 for
`\pi`

`MA = (2\pi r)/(P)`

`MA = (2 * 3..14 * 2.6)/(0.8)`

`MA = (16.328)/(0.8)`

`M.A = 20.41`

From the list of given options, the approximated answer is D. 20.4