- #1
robbinz
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Homework Statement
Q
A load of mass 8 tonne is to be raised with a uniform acceleration of 1.1 m/s^2 by means of a light cable passing over a hoist drum of 2 m diameter. The drum has a mass of 1 tonne an a radius of gyration of 750 mm. Find the torque required at the drum if friction is neglected.
A
(87.8 KN-M)
Homework Equations
T=Ia = MK^2a ( The a is ment to be alpha )
F=MA
The Attempt at a Solution
Ok so my attempt at the solution was T = Ia(alpha) + F x R ( Taking F=MA )
But it comes out wayyyy wrong.
So obiously I know the solution as I have given it. But I am confused as how to do the working. Can anyone help ?
p.s. First forum post...yayyy :D
Thanks