SOLUTION: A beam 3cm. wide and 5 cm deep can support a load of 630 kg. What load can it support when turned on it's side?
I don't understand what to do with this question.
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Question 190318This question is from textbook algebra and trigonometry structure and method book 2
: A beam 3cm. wide and 5 cm deep can support a load of 630 kg. What load can it support when turned on it's side?
I don't understand what to do with this question.
This question is from textbook algebra and trigonometry structure and method book 2
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The amount of weight a rectangular cross-section beam can support is directly proportional to the square of the horizontal dimension and to the cube of the vertical dimension, i.e.
For your problem:
^2(5)^3 = 1125k)
Hence
So:
If you turn the beam on its side (note the switch of values between H and V):
^2(3)^3 = (0.56)(25)(27) = 378)
John
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