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Mouse Along for the Ride

SATPHY-FGJETL

A certain spring-mass system (pictured below) is oscillating up and down when a $0.30\ kg$ mouse hops on top of the mass to take a ride.

If the original mass is $0.10\ kg$, how does the new period of the spring-mass system (including the mouse) compare to the old system without the mouse?

Created for Albert.io. Copyright 2016. All rights reserved.

A

The period of the new system is four times as great as the period of the old system.

B

The period of the new system is one-fourth as great as the period of the old system.

C

The period of the new system is twice as great as the period of the old system.

D

The period of the new system is one-half as great as the period of the old system.

E

The period of the new system is about the same as the period of the old system.