Question: At the instant shown in ( Eigure 1 ) the collar at A on the 3 . 5 - l b rod A B has

At the instant shown in

(

Eigure

1)

the collar at

A

on the

3.5 - l b

rod

A B

has a velocity of

v_{A} = 8 f \frac{t}{s}

Determine the kinetic energy of the rod after the collar A has descended

3

.

Each collar is attached to the rod using a ball

-

and

-

socket joint. Neglect friction, the thickness of the rod, and the mass of the collars. Hint. Use the angular velocity component of the rod that is directed perpendicular to the rod's axis.

Express your answer in foot

-

pounds to three significant figures.

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Figure

1

1

At the instant shown in ( Eigure 1 ) the collar

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