Saved Bookmarks
| 1. |
9. If a brick fall down from top of the building in 4 secthen the height of that building is __ mit.a) 72.2 b) 74.8 c) 78.4 d) 64.8nail |
|
Answer» s=ut+1/2at² s=1/2*9.8*4*4=78.4 |
|