How much work does it take to push with a force of 3 pounds on a stack of books weighing 12 pounds across a 5 ft. table?
since it says that the fomula is work = force x distance i multiplied 5x3 and got 15. so is it 15 ft x lb? or something else because Im not sure if you need to do anything with the information about the weight of the books. It doesnt say anything in my book about it so all you smart people out there can you correct my answer?
2006-10-26 20:53:27 · 4 answers · asked by aznflipgurl808 2 in Education & Reference ➔ Homework Help
The three previous answers are useless, or wrong because they did not read your question.
Work = force X distance = 3 lb x 5 ft = 15 ft lbs. You are correct.
The weight of the books is irrelevant. For a different question, it would tell you how slippery or how rough the surface was.
2006-10-27 01:49:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Naah...its a diff scenario here...
Mass = 12 Lbs
Force = 12*9.8 =117.6 N
Work = 117.6*5 =588 N-Ft
This will be the work done if you have to move the 12 pounds for 5 ft. The Force of 3 Lbs may-not move the 12 Lbs stack at the first place.
2006-10-26 21:52:07 · answer #2 · answered by Gurmeet Singh 2 · 0⤊ 1⤋
You need to know the mew of the surface.
Mew is the resistance generated when trying to slide an object, sand has high mew, polished wood has low mew.
2006-10-26 21:02:44 · answer #3 · answered by Timothy C 5 · 0⤊ 1⤋
Easy - NONE. Tip the table about 45 degree. The force of gravity will take over and you'll never have to push anything.
Please stop asking stupid question. I'm busy.
2006-10-26 21:09:01 · answer #4 · answered by click-it! 2 · 0⤊ 2⤋