A Uniform Rod of Mass M = 1 $\theta$ = 40 $\degree$

question 47

Multiple Choice

A uniform rod of mass M = 1.2 kg and length L = 0.80 m, lying on a frictionless horizontal plane, is free to pivot about a vertical axis through one end, as shown. The moment of inertia of the rod about this axis is given by (1/3) ML2. If a force (F = 5.0 N, $\theta$ = 40 $\degree$ ) acts as shown, what is the resulting angular acceleration about the pivot point?

• A)16 rad/s2
• B)12 rad/s2
• C)14 rad/s2
• D)10 rad/s2
• E)33 rad/s2

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Definitions:

Myosin

A type of protein found in muscle fibers that interacts with actin to convert chemical energy into mechanical energy, leading to muscle contraction.

Titin

A giant protein that functions as a molecular spring, contributing to the passive elasticity of muscle.

Muscle Fiber

An individual muscle cell, essential for producing force and movement through contraction.

Muscle Cell

A cell specialized for contraction, facilitating movement and support in the body, also known as a myocyte.