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(I) Use dimensional analysis in Example 17 of "UsingNewton's Laws: Friction, Circular Motion, Drag Forces" todetermine if the time constant $\tau$ is $\tau=m / b$ or $\tau=b / m$ .

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$\tau=\frac{m}{b}$

Physics 101 Mechanics

Chapter 5

Using Newton's Laws: Friction, Circular Motion, Drag Forces

Motion Along a Straight Line

Motion in 2d or 3d

Newton's Laws of Motion

Applying Newton's Laws

Rotation of Rigid Bodies

Dynamics of Rotational Motion

Equilibrium and Elasticity

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Lectures

02:34

In physics, a rigid body is an object that is not deformed by the stress of external forces. The term "rigid body" is used in the context of classical mechanics, where it refers to a body that has no degrees of freedom and is completely described by its position and the forces applied to it. A rigid body is a special case of a solid body, and is one type of spatial body. The term "rigid body" is also used in the context of continuum mechanics, where it refers to a solid body that is deformed by external forces, but does not change in volume. In continuum mechanics, a rigid body is a continuous body that has no internal degrees of freedom. The term "rigid body" is also used in the context of quantum mechanics, where it refers to a body that cannot be squeezed into a smaller volume without changing its shape.

02:21

In physics, rotational dynamics is the study of the kinematics and kinetics of rotational motion, the motion of rigid bodies, and the about axes of the body. It can be divided into the study of torque and the study of angular velocity.

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In the following figure. m…

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Newton's Second Law o…

01:33

(III) Determine a formula …

01:24

Suppose $m$ is the mass o…

01:55

If a body of mass $m$ is m…

00:59

Dimensional representation…

01:02

If $E, m, J$ and $G$ repre…

01:19

$F=A_{0}\left(1-e^{-(B x …

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