consider energy:
initial PE+initial KE= finalPE+finalKE
0+1/2 m 19.4^2=mg*3=1/2 m vf^2
solve for Vfinal
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 19.4 m/s at an angle of 45.0˚ 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.
2 answers
13.6
2 answers