A disk with radius R and mass m begins from rest and then moves without slipping while being pulled horizontall by a force P acting at its center axle. Show that the velocity of the wheel after T seconds is v = 2PT/3m. (Hint: use both linear and angular-impulse principles.) m R P ¹The radius of gyration has units of length and is related to the inertia by k = Ic/m. It corresponds to the distance at which a mass equivalent to the mass of the rigid body would produce the same inertia as the actual rigid body. Recall that the inertia of a particle of mass m at a distance r from an axis of ortation is mr². Rather that using r the convention is to define the radus of gyration with the symbol k.
A disk with radius R and mass m begins from rest and then moves without slipping while being pulled horizontall by a force P acting at its center axle. Show that the velocity of the wheel after T seconds is v = 2PT/3m. (Hint: use both linear and angular-impulse principles.) m R P ¹The radius of gyration has units of length and is related to the inertia by k = Ic/m. It corresponds to the distance at which a mass equivalent to the mass of the rigid body would produce the same inertia as the actual rigid body. Recall that the inertia of a particle of mass m at a distance r from an axis of ortation is mr². Rather that using r the convention is to define the radus of gyration with the symbol k.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:**Problem: Rolling Motion Analysis**
**Description:**
A disk with radius \( R \) and mass \( m \) begins from rest and then moves without slipping while being pulled horizontally by a force \( P \) acting at its center axle. Demonstrate that the velocity of the wheel after \( T \) seconds is \( v = \frac{2PT}{3m} \).
*(Hint: use both linear and angular-impulse principles.)*
**Diagram Explanation:**
The diagram shows a disk rolling on a horizontal surface. The center of the disk is labeled as \( G \) with a force \( P \) acting horizontally through this point. An arrow indicates the direction of the force. The radius \( R \) extends from the center to the edge of the disk.
**Additional Information on Radius of Gyration:**
The radius of gyration has units of length and is related to the inertia by \( k_G^2 = \frac{I_G}{m} \). It represents the distance at which a mass equivalent to that of the rigid body would produce the same inertia as the rigid body itself. Recall that the inertia of a particle of mass \( m \) at a distance \( r \) from an axis of rotation is \( mr^2 \). Rather than using \( r \), the convention is to define the radius of gyration with the symbol \( k \).
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