Vo = (16.8m/sw,30deg). = Initial velocity.
Yo = ver. = 16.8sin30 = 8.4m/s = ver.
component of Vo.
h = (Vf^2 - Yo^2) / 2g,
h = (0 - (8.4)^2) / -19.6 = 3.6m., max.
d(dn) = 3.6 - 3 = 0.6m.
Vf^2 = Vo^2 + 2g*d,
Vf^2 = 0 + 19.6*0.6 = 11.76,
Vf = 3.43m/s.
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. The ball leaves the club at a speed of 16.8 m/s at an angle of 30.0¢ª above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of the ball just before it lands.
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