Part A

A thin, uniform $3\mathrm{.}60kg$ bar, $80\mathrm{.}0cm$ long, has very small

$2\mathrm{.}50kg$ balls glued on at either end $($Figure $1).$ It is

supported horizontally by a thin, horizontal, frictionless

axle passing through its center and perpendicular to the

bar. Suddenly the right$-$hand ball becomes detached and

falls off, but the other ball remains glued to the bar.

Figure

$1$ of $1$

Find the angular acceleration of the bar just after the ball falls off.

Express your answer in radians per second squared.

$|{}_z|=|,ra\frac{d}{s^2}$

Request Answer

Part B

Will the angular acceleration remain constant as the bar continues to swing? If not, will it

increase or decrease?

remains constant

increases

decreases

Part C

Find the angular velocity of the bar just as it swings through its vertical position.

Express your answer in radians per second.

$=$

$ra\frac{d}{s}$