A 2.0 kg metal fragment recovered 103 m North of the scene of an explosion is found embedded in a tree 11.0 m above ground level.  The metal fragment originates from an exploded propane tank and it hit the tree without hitting anything else on the way there. The fragment originated from 0.45 m above ground level.  The damage on the tree indicates that the fragment struck at an angle 12.9° below the horizontal (that is, it was on the way DOWN as it made contact with the tree) with a speed of 40.0 m/s. 

What is the magnitude of the initial velocity of the fragment?  m/s^.  What angle does the initial velocity make with respect to the horizontal?   degrees. 

Answer rating: 100% (QA)

Hence the magnitude of the ini... View the full answer