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A golfer hits a shot to a green that is elevated 2.90 m above the point where the ball is struck. The ball leaves the club at a...Question
A golfer hits a shot to a green that is elevated 3.00 m above the point where the ball is struck. The ball leaves the club at a speed of 16.1 m/s at an angle of 52.0¢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.
Answers
Henry
Vo = 16.1m/s @ 52o.
Yo = 16.1*sin52 = 12.7 m/s.
Y^2 = Yo^2 + 2g*h.
h = (Y^2-Yo^2)/2g=(0-161)/-19.6=8.2 m.
V^2 = Vo^2 + 2g*d.
V^2 = 0 + 19.6*(8.2-3) = 101.92
V = 10.1 m/s.
Yo = 16.1*sin52 = 12.7 m/s.
Y^2 = Yo^2 + 2g*h.
h = (Y^2-Yo^2)/2g=(0-161)/-19.6=8.2 m.
V^2 = Vo^2 + 2g*d.
V^2 = 0 + 19.6*(8.2-3) = 101.92
V = 10.1 m/s.