The Rigid Object Shown Is Rotated About an Axis Perpendicular

question 28

Multiple Choice

The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 1.4 J. If M = 1.3 kg and L = 0.50 m, what is the angular velocity of the object? Neglect the mass of the connecting rods and treat the masses as particles.

• A)1.3 rad/s
• B)1.5 rad/s
• C)1.7 rad/s
• D)1.2 rad/s
• E)2.1 rad/s

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Definitions:

Tarsals

A group of seven bones in the foot situated between the lower leg bones (tibia and fibula) and the metatarsal bones, playing a key role in the structure and function of the foot.

Axial Skeleton

The part of the skeleton that consists of the bones of the head and trunk of a vertebrate.

Appendicular Skeleton

Part of the skeleton that includes the bones of the limbs and the pectoral and pelvic girdles, facilitating movement.

Cavitiy

A hollow space within the body or one of its organs; however, the correct spelling is "cavity."