A Rock Is Projected from the Edge of the Top $\degree$

question 7

Multiple Choice

A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53 $\degree$ above the horizontal.The rock strikes the ground a horizontal distance of 25 m from the base of the building.Assume that the ground is level and that the side of the building is vertical.How tall is the building?

• A)25.3 m
• B)29.6 m
• C)27.4 m
• D)23.6 m
• E)18.9 m