Recent content by holy_kamote

is my diagram correct? pls correct it if its wrong... http://img43.imageshack.us/img43/5784/physicsd.th.png Uploaded with ImageShack.us

Center of gravity? A uniform board 20.0cm x 10.0 cm has a mass of 200g. Masses of 50.0 and 80.0 grams are attached at two corners at the ends of one of the longer sides. Locate the center of gravity. i have no idea how to solve this help me pls...

ok normal force= 20000sin14.50=5007.6 and theparallel component 20000cos14.50=19363 is this correct?

i convert 10 tons to 20000 lbs? then i get the angle 5/20=0.25cos=14.50degrees? i calculate force of gravity 20000 x 9.8 = 196000.. then the normal force 196000/cos14.50=184757.7...then i get the parallel to the incline 196000/sin14.50=49074.5 is that correct? what's the next step? pls reply...

i convert ton in kg?

will i use conversion with this prob? ton??

sir doc al will i use the cosine law? thanks for the repz..

what is the formula for finding least force help me pls?

find least force? Homework Statement a safe weighing 10 tons is to be loaded on a truck 5.0 ft high by means of planks 20 ft long if it requires 350lb to overcome friction on the skids, find the least force nescessary to move the safe. Homework Equations The Attempt at a Solution...

what formula will i use to solve this prob?... thanks sir jay for posting in my topic.

help me plsssss. coz we will have a boardwork tomorrow ..

Homework Statement a motor operates at its rated load of 10 hp for 8.0 h a day. its efficiency is 87 percent. what is the daily cost of operation if electric energy costs 5 cents/kWh? Homework Equations The Attempt at a Solution i convert 10 hp to watts 10 x 746=7460 watts...