Question

A screw having 50% efficiency is driven by a rod and 25 cm. The pitch of the screw is 1/10cm Calculate velocity ratio and mechanical advantage of the screw. ​

Answer 1

(a) The velocity ratio of the screw is 1570.8.

(b) The mechanical advantage of the screw is 785.39.

Velocity ratio of the screw

The velocity ratio of the screw is calculated as follows;

V.R = 2πr/P

where;

• P is the pitch = 1/10 cm = 0.1 cm = 0.001 m
• r is radius = 25 cm = 0.25 m

V.R = (2π x 0.25)/(0.001)

V.R = 1570.8

Mechanical advantage of the screw

E = MA/VR x 100%

0.5 = MA/1570.8

MA = 785.39

Learn more about mechanical advantage here: brainly.com/question/18345299

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