Author Question: A helicopter is traveling at 50.0 m/s at a constant altitude of 150 m over a level field. If a wheel ... (Read 214 times)

wenmo · **on:** Jul 28, 2018

A helicopter is traveling at 50.0 m/s at a constant altitude of 150 m over a level field. If a wheel falls off the helicopter, with what speed will it hit the ground? (g = 9.8 m/s2 and air resistance negligible)
a. 63 m/s
b. 55 m/s
c. 74 m/s
d. 54 m/s

Question 2

A baseball is thrown by the center fielder (from shoulder level) to home plate where it is caught (on the fly at shoulder level) by the catcher. At what point does the magnitude of the vertical component of velocity have its minimum value? (air resistance is negligible)
a. just after leaving the center fielder's hand
b. just before arriving at the catcher's mitt
c. at the top of the trajectory
d. magnitude of vertical component of velocity is constant