APFIVE Equivalence Principle and Apparent Weight
An astronaut in a rocket experiences an apparent weight equal to twice their Earth weight. If the rocket is accelerating away from Earth, which statement correctly applies the equivalence principle?
A
The astronaut cannot tell if the sensation is due to acceleration or a stronger gravitational field
B
The equivalence principle only applies in free-fall, not during acceleration
C
The astronaut can distinguish between acceleration and gravity using a pendulum
D
The astronaut can determine they are accelerating by measuring their mass
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