A puck of mass Ma that is moving along the +x axis with speed va collides with another puck of mass mg = 3ma. The collision is not head-on, so that after they collide, mB is located at 45° south of east, while ma collides head-on elastically with a stationary puck of mass mc = 2ma. If, after the second collision, the final velocity of mc is 0.750 [m/s], 25° north of east, what is the initial speed va? A. 0.450 [m/s] B. 2.25 [m/s] C. 1.49 [m/s] D. 1.12 [m/s]
A puck of mass Ma that is moving along the +x axis with speed va collides with another puck of mass mg = 3ma. The collision is not head-on, so that after they collide, mB is located at 45° south of east, while ma collides head-on elastically with a stationary puck of mass mc = 2ma. If, after the second collision, the final velocity of mc is 0.750 [m/s], 25° north of east, what is the initial speed va? A. 0.450 [m/s] B. 2.25 [m/s] C. 1.49 [m/s] D. 1.12 [m/s]
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A puck of mass mA that is moving along the +x axis with speed va collides with another puck of mass mB = 3mA. The collision is not head-on, so that after they collide, mB is located at 45◦ south of east, while mA collides head-on elastically with a stationary puck of mass mC = 2mA. If, after the second collision, the final velocity of mC is 0.750 [m/s], 25◦ north of east, what is the initial speed va?
- 0.450 [m/s]
- 2.25 [m/s]
- 1.49 [m/s]
- 1.12 [m/s]
Transcribed Image Text:y
y
mc
mc
mA
–-x
--x
B = 45.0°
MA
MBi
mB
AFTER
BEFORE
![A puck of mass ma that is moving along the +x axis with speed v, collides with another puck of mass mB =
3ma. The collision is not head-on, so that after they collide, mB is located at 45º south of east, while ma
collides head-on elastically with a stationary puck of mass mc = 2ma. If, after the second collision, the
final velocity of mc is 0.750 [m/s], 25° north of east, what is the initial speed va?
A. 0.450 [m/s]
B. 2.25 [m/s]
C. 1.49 [m/s]
D. 1.12 [m/s]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffeeb561c-e97d-4e1a-8b4a-7634174c764b%2F2a697c38-852b-4c65-b8db-37b2d566babf%2Fvelzhf_processed.png&w=3840&q=75)
Transcribed Image Text:A puck of mass ma that is moving along the +x axis with speed v, collides with another puck of mass mB =
3ma. The collision is not head-on, so that after they collide, mB is located at 45º south of east, while ma
collides head-on elastically with a stationary puck of mass mc = 2ma. If, after the second collision, the
final velocity of mc is 0.750 [m/s], 25° north of east, what is the initial speed va?
A. 0.450 [m/s]
B. 2.25 [m/s]
C. 1.49 [m/s]
D. 1.12 [m/s]
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