Final answer:
The student's question pertains to finding the girl's apparent weight at the top of a pendulum swing, which requires information about the swing's radius and velocity at that point. Apparent weight is calculated using the formula N = m(v^2/r) - mg, incorporating both centripetal force and gravitational force. Specific values for 'v' and 'r' are necessary to compute the apparent weight in newtons.
Step-by-step explanation:
When considering apparent weight in a physics context, we look at the normal force exerted on a person due to acceleration, in addition to the force of gravity. If a girl's velocity at the top of a pendulum swing is the same as in a previous part of the problem (which is not fully specified in this question), we can use circular motion principles to determine her apparent weight. Apparent weight is the normal force experienced by the girl and varies depending on her position in the pendulum swing.
At the very top of the swing, her apparent weight would be due to the centripetal force necessary to keep her in circular motion, minus the force of gravity, because these forces are in opposite directions. We would calculate this using the formula N = m(v^2/r) - mg, where 'N' represents the normal force (apparent weight), 'm' is the mass, 'v' is the velocity, and 'r' is the radius of the pendulum's circular path. However, the question does not provide specific values for 'v' or 'r', so we would need that information to calculate the exact apparent weight in newtons. Without those values, we cannot provide a numerical answer.