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Physics, 09.02.2021 21:40 alandrabell9234
Two identical spheres of known mass M are attached to opposite ends of a rod of negligible mass. The mass-rod-mass system is spun in the vertical plane and then released so the system falls downward as it rotates, as shown in the figure. Data are collected and shown in the graph of the vertical velocity, v, of the two spheres as a function of time t. The positive direction is considered to be downward. A student uses the graph to make three claims.
Claim 1: Change in linear momentum of the center of mass of the system from 0.0s to 0.5s can be determined.
Claim 2: The average applied force exerted on the center of mass of the system from 0.0s to 0.5s can be determined.
Claim 3: The change in the kinetic energy of the system from 0.0s to 0.5s can be determined.
Which of the student's claims are correct?
Claim 1 and claim 2 only
Claim 1 and claim 2 only
A
Claim 1 and claim 3 only
Claim 1 and claim 3 only
B
Claim 2 and claim 3 only
Claim 2 and claim 3 only
C
Claim 1, claim 2, and claim 3
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Answers: 1
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