The three 160 g masses in (Figure 1) are connected by massless, rigid rods. a) What is the triangle’s moment of inertia about the axis through the center? b) What is the triangle’s kinetic energy if it rotates about the axis at 5.2 rev/srev/s ? Express your answer with the appropriate units.

The three 160 g masses in (Figure 1) are connected by massless, rigid rods. a) What is the triangle’s moment of inertia about the axis through the center? b) What is the triangle’s kinetic energy if it rotates about the axis at 5.2 rev/srev/s ? Express your answer with the appropriate units.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter1: The Nature Of Light

Section: Chapter Questions

Problem 94CP: If the apex angle in the previous problem is 20.0° and n = 1.50, what is the value of a?

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

The three 160 g masses in (Figure 1) are connected by massless, rigid rods.

a) What is the triangle’s moment of inertia about the axis through the center?

b) What is the triangle’s kinetic energy if it rotates about the axis at 5.2 rev/srev/s ?

Express your answer with the appropriate units.

ssless, n
ure
40 cm
60°
Axis
40 cm
<
40 cm
60°
1 of 1

Expert Solution

Step 1

$e a c h m a s s (m) = 160 g m = 0.16 k g m a s s o f r o d s = n e g l i g i b l e l e n g t h o f e a c h r o d (L) = 40 c m L = 0.4 m$

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