8.9. A quarterback throws a pass initially at a height of h= 1.8m above the ground. A wide receiver starting from rest at the location of the quarterback accelerates downfield with a = 4.0 m/s² and catches it t = 3.0s later. Assuming the receiver caught it at ground level, compute the speed and launch angle of the ball as it left the quarterback's hands.
8.9. A quarterback throws a pass initially at a height of h= 1.8m above the ground. A wide receiver starting from rest at the location of the quarterback accelerates downfield with a = 4.0 m/s² and catches it t = 3.0s later. Assuming the receiver caught it at ground level, compute the speed and launch angle of the ball as it left the quarterback's hands.
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Transcribed Image Text:8.9. A quarterback throws a pass initially at a height of h = 1.8m above the ground. A wide
receiver starting from rest at the location of the quarterback accelerates downfield with
a = 4.0 m/s² and catches it t = 3.0s later. Assuming the receiver caught it at ground level,
compute the speed and launch angle of the ball as it left the quarterback's hands.
1.8m
9.E. Motion with constant accelerations in both the x and y directions
11m
2.0m
An electron is shot at the center of an electromagnetic tube device with initial velocity
= 20+4. In the tube it experiences gravity, but it is also accelerated in the
horizontal direction with ax
==
vo
1
29.
a. Does the electron hit the top of the tube: yes or no? Justify your answer
b. Does the electron make it out of the tube: yes, or no? Justify your answer.
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