12. You and your lab partners are performing a mechanical energy experiment. You place a projectile...

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12. You and your lab partners are performing a mechanical energy experiment. You place a projectile launcher on a table that gives it a launch height of 1.25 m. You initially shoot the launcher horizontally to determine its initial speed of the 100 gram yellow ball. a. If you launch the ball horizontally and it lands 3.65 m away, what was the initial velocity of the ball? Ay=1.25m .001kg Ax = 3.65 -4 b. Now you are launching the ball at an angle of 45 degrees. (If you did not get an answer for part a, use 6 m/s). Assuming it maintains the same launch height, what are the initial kinetic energy and potential energies of the ball immediately after launch? just 0.1 not 0.001 kg K = = (001 kg) (63) 2 kgm2 U=(.001kg) (9.81) (1.25 K = 0.018 kg m 2 U= 0.01226 kgm c. What is the kinetic energy at the peak? d. What is the maximum height of the ball? 25 0- 00119 horizontall onzontally E not launched -4 12. You and your lab partners are performing a mechanical energy experiment. You place a projectile launcher on a table that gives it a launch height of 1.25 m. You initially shoot the launcher horizontally to determine its initial speed of the 100 gram yellow ball. a. If you launch the ball horizontally and it lands 3.65 m away, what was the initial velocity of the ball? Ay=1.25m .001kg Ax = 3.65 -4 b. Now you are launching the ball at an angle of 45 degrees. (If you did not get an answer for part a, use 6 m/s). Assuming it maintains the same launch height, what are the initial kinetic energy and potential energies of the ball immediately after launch? just 0.1 not 0.001 kg K = = (001 kg) (63) 2 kgm2 U=(.001kg) (9.81) (1.25 K = 0.018 kg m 2 U= 0.01226 kgm c. What is the kinetic energy at the peak? d. What is the maximum height of the ball? 25 0- 00119 horizontall onzontally E not launched -4