physics
posted by Anonymous .
how high a building can superman jump over if he is to leave the ground with a velocity of 60 m/s at an angle of 75 degrees

Superman flies, not jumps. Haven't you seen the movies?
In the vertical..
Vi=60m/s * sin 75
at the top, Vf in the vertical is zero.
Vftop^2=Vi^2 + 2gh
g=9.8m/s^2, Vftop=0 solve for h. 
168