Saved Bookmarks
| 1. |
. A person can “ walk on water “ if she has the proper shoes. Assume that you use expanded polystyrene (ρ = 0.40 g/cm3 ) to construct two blocks that you will strap to your feet, with a cross section of 850 cm2 . How long will each block need to be in order to support a 65 kg person? |
|
Answer» F=mg = (65)(9.8)= 637 F = (0.4 g/cm3)(850 cm2)(9.8)(h) F = 3332 (h) 637 = 3332(h) 0.19 = h |
|