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$\bullet$ (a) Calculate the angular velocity (in rad/s) of the second, minute, and hour hands on a wall clock. (b) What is the period of each of these hands?

a) 0.105 $\mathrm{rad} / \mathrm{s}$$.75 \times 10^{-3} \mathrm{rad} / \mathrm{s}$$=\underbrace{1.45 \times 10^{-4} \mathrm{rad} / \mathrm{s}}$b) 60$s$1 $\mathrm{hr}$12 hrs

Physics 101 Mechanics

Chapter 9

Rotational Motion

Physics Basics

Rotation of Rigid Bodies

Dynamics of Rotational Motion

Equilibrium and Elasticity

Cheema L.

November 27, 2020

a rotating toy above a crib makes one complete counterclockwise rotation in 1min

Rutgers, The State University of New Jersey

Hope College

University of Sheffield

McMaster University

Lectures

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In mathematics, a proof is a sequence of statements given to explain how a conclusion is derived from premises known or assumed to be true. The proof attempts to demonstrate that the conclusion is a logical consequence of the premises, and is one of the most important goals of mathematics.

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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 this problem, we have to help lead the angular speed off second hand, uh, minutes and and our send off wall watch. So let's go. My guess for the angler. Velocity off secondhand, my gram for the And we've lost two of the men attend and oh, my God. For the England last year. Off the plotting, buddy. Now let's define the angler velocity as my guy calls to Italy Wanted by t. So call it Equation one now setting the values for my guests into the square. In one, we will get my dad s equals to two multiplied by three point 14 Pretty in. You wanted by 60 seconds as the time period for the second send in 60 seconds. So this will give us my dad s equals. Two 0.105 Brilliant per second more for setting the values for Oh my God, I am. We will get my goddamn equals. Two two multiplied by 3.14 Radiant divided by 16 multiplied by 60 seconds as the time Peter for this minute hand is one minute. So this would give us Oh my God. Chemical stool 1.7 multiplied by turns for ministry. Radiant per second. No sitting. The values for my gage. We would get omega equals to two multiplied by 3.14 Radiant, divided by 60 multiplied by 60 multiplied by 60 seconds. The champion for the arson and is, uh, one of So this will give us Oh, my God equals two 1.45 million Corsica. Thank you.

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