A block of ice breaks loose and slides down the roof of an apartment building sloped at an angle of 29.0 ? with the horizontal. The block moves 5.00 m down the icy, frictionless roof and leaves the edge 12.0 m above the ground, as shown in Figure A1.12.

a.) Calculate the block's velocity as it leaves the roof.

b.) How far from the base of the building does the block strike the ground?

c.) By how much does the block clear a 1.80 - m fence located 6.70 m from the building?