1 (a) A ball is launched from the ground toward a tall wall of abuilding at initial speed v0 = 21 m/s at an angle of 39degrees relative to the horizontal. The wall is at a distance of 29m from the launch point. What is the magnitude of the ball'svelocity vector as it hits the wall?
Your answer should be in m/s, but enter only the numerical partin the answer box.
(b) A ball is launched from the ground toward a tall wall of abuilding at initial speed v0 = 27 m/s at an angle of 41degrees relative to the horizontal. The wall is at a distance of 39m from the launch point. What angle does the ball's velocity vectormake with respect to horizontal as it hits thewall?  [Note: a negative answer means the ball is movingon a downward angle. Be sure to enter the correct sign!]
Your answer should be in degrees, but enter only the numericalpart in the answer box.
