A screw jack with a Tommy bar of length 12cm is used to raise a car through a vertical height of 25cm by turning the Tommy bar through 50 revolutions. Calculate the approximate velocity ratio of the jack [\(\pi = 3.142\)]
a
21
b
38
c
48
d
151
Explanation
Correct Option
dVideo Explanation
No video available
Post your Contribution
Share:
