Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm
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Correct Answer: Option A
Explanation:
P = 0.2cm, L = r = 23cm
VR
=
2Ï€r
P
=
2Ï€L
P
=
2π×23
0.2
=
230Ï€
P = 0.2cm, L = r = 23cm
VR
=
2Ï€r
P
=
2Ï€L
P
=
2π×23
0.2
=
230Ï€