Pendulum Period and Mass · PhysicsBowl 2010 #23

Physics

Problem

A point object of mass

M

is connected to the end of a long string of negligible mass and the system swings as a simple pendulum with period

T

. The point object of mass

M

is now replaced with a point object of mass

4M

. When this new system swings as a simple pendulum, what is its period? (A)

4T

(B)

2T

(C)

T

(D)

\frac{T}{2}

(E)

\frac{T}{4}