Comments for Hoists

Comment on Determine the distance at time t.? by Alexey V

Alexey V — Sun, 07 Mar 2010 11:26:59 +0000

There are 2 forces acting on a car along the incline: F upward and component of gravity mgsin(28.07) downward. Total force is F - mgsin(28.07) and according to second law acceleration is a = (F - mgsin(28.07))/m = F/m - gsin(28.07) = 3200/m*t^2 - gsin(28.07)
To find velocity at time t we have to find integral of a:
v = 3200/(3m)*t^3 - gsin(28.07)*t + v0
To find displacement we have to find integral of v:
d = 3200/(12m)*t^4 - gsin(28.07)/2*t^2 + v0*t
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Comment on Is it possible to lift the rear of a boat up with an engine hoist? by 45 auto

45 auto — Thu, 04 Mar 2010 14:25:59 +0000

Be careful as U can tip the engine lift over there not made for long lifting only direct up lift.
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Comment on Is it possible to lift the rear of a boat up with an engine hoist? by Ӝ

Thu, 04 Mar 2010 14:10:59 +0000

You don’t give any details as to the size of your boat, but on most small craft the stern cleats are plenty strong enough to lift the stern. If you are working under the boat, rig a secondary lift from the outdrive or the lifting rings on the engine as safety, or block the boat before getting underneath.
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Comment on What is the term when nothing seems to work and/or one problem leads to yet another? by Shenanigans

Shenanigans — Thu, 04 Mar 2010 14:04:59 +0000

You are talking about Murphy’s Law, the rule that when things get bad, they will continue to get worse until something that from happening.
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Comment on What is the term when nothing seems to work and/or one problem leads to yet another? by loafer

loafer — Thu, 04 Mar 2010 13:48:59 +0000

domino effect
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