Ask Experts Questions for FREE Help !
Ask
    Eddie_G's Avatar
    Eddie_G Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Aug 14, 2007, 09:18 AM
    Random 10?
    A building hoist lifts ten 50 kg bags of cement through a vertical distance
    of 30 m to the top of a high rise building. Calculate the work done by the
    hoist, assuming the acceleration due to gravity to be 9.81 m/s2.
    Work done = Force x Distance moved (J)
    but Force = Mass x Acceleration (N)
    Work done = Mass x Acceleration x Distance moved (J)
    Work done = 10 x 50 kg x 9.81 m/s2 x 30m
    Work done = 147.15 kJ.

    my problem is where does the 'red' 10 come into the equation?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
    Uber Member
    		  
    #2

    Aug 14, 2007, 10:10 AM
    ten 50kg bags?
    Eddie_G's Avatar
    Eddie_G Posts: 4, Reputation: 1
    New Member
    		  
    #3

    Aug 14, 2007, 10:12 AM
    Why am I a retard? Hahaha
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
    Uber Member
    		  
    #4

    Aug 14, 2007, 10:13 AM
    Physics cannot answer that one.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Random [ 4 Answers ]

Hey, I've just finished year 12 in australia (a couple of days ago actually) And I've always wondered about american high school... I hear on TV and what not about "softmore's" and "freshmans" What do these terms mean? And are there any more?

Random hook-up [ 2 Answers ]

On Friday night I hung out with my good friend, let's call him John. John and I have been friends for awhile and I know that he has liked me forever. Not to be conceited, but apparently he has some sort of obsession. When I hung out with John, he was with his friend Peter. By the end of the...

Random Englandish! [ 2 Answers ]

I know people ask these sorts of questions all the time, but I was wondering if anyone had any other examples of the English language being a bit... well... random? "Talking behind someones back" - Surely, if you're talking behind someone's back you're talking to their face? "Head over...

Random erections [ 12 Answers ]

I was just wondering why is it, I tend to have just random erections? I could be simply playing a game, driving home from work, going to work, going to the store, trying to sleep, no matter what I am doing, just out of the blue, I get an erection. Any thoughts?

Random Errors [ 1 Answers ]

SO I bought new parts to build a new computer, get an Gigabyte M55SLI-S4, Kingston Dual Channel DD2 800 ram, AMD 64 X2 4800, and an ATI Radeon X1600pro, Maxtor SATA HDD, so I start setting up windows, start formating the HDD, and when it starts to install it gives me random error, like ACPI.SYS...

View more questions Search