Lift Mec
Lift Mec
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 2007 MEC 2647ES ELECTRIC SCISSOR LIFT MAN LIFT PLATFORM US $7,990.00 |
 MEC 24FT SCISSOR LIFT 2548HT AERIAL PLATFORM EXT DECK  US $4,500.00
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 MEC 2033ES SCISSOR LIFT EB US $3,450.00
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 MEC 19 NERROW ISLE SCISSOR LIFT NEW BATTERIES NICE US $3,000.00
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 MEC 1632 Scissor lift needs work US $250.00
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 Mec electric lift used control box US $49.00
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 1632 Mec Scissor Lift with new batteries US $1.25 |
Mechanical advantage problems - URGENT HELP!?
1.A single fixed pulley uses 65 N to move 65N object 56ft at the time the obj is lowered 45ft at a rate of 3.5ft/sec. What is the mec adv?
2. A bicyclist pedals with 65N on a pedal attached to a sprocket with a diameter of 30cm and a shaft of 10cm. How much force the bicyclist generate?
3. How much effort will be needed to lift a 435N object with a first class lever with an effort arm of 54cm and a resistance arm of 52cm?
4. two movers push a piano up a ramp onto truck with 3400N. If the ramp is 76cm high and 430cm long how much does the piano weight?
5. The same two movers load a table on the same ramp. It weights 650N and they push with a force of 450N. What is the efficiency of this ramp?
6. A hand generator is cranked all the way around its diameter which is 650cm. It takes 45N of effort to turn it and it takes 3sec to complete each turn. How much power is generated on each turn?
Do your own homework