A screw jack, 25% efficient and having a screw of pitch 0.4cm is used to raise a load through a certain height. If in the process, the handle turns through a circle of radius 40cm, calculate the:
1) Velocity ratio of the machine.
2) The Mechanical advantage of the
machine.
3) Effort required to raise a load of
1000N with the machine
(take π = 3.14)
(SSCE)
N.B.
Show all workings?
In Physics
2 Answers Available
Asked by Samuel on 16th February, 2019
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