Closed pwede po pa help sa physics ? plox mga physics major

[pisiks is hard]

Patulong po sana sa physics prob na itech

A torque of 400 N.m is applied to a disk initially at rest. The disk has a moment of inertia of 2 Kg.m2. After 10 full rotations determine:
(A) the work done on the disk,
(B) the final rotational KE,
(C) the final angular speed (in rad/s).

wala talaga akong mahanap sa internet subrang hirap pa nya... yung prof kasi namin pa ibaiba ng turo kaya d namin masyado ma gets. di naman sa sinisisi ko yung prof namern pero di talaga namin sya maintindihan pag nag te-teach sya samin

 

[Nankuraniza]

Wala bang time na given yung problem?

 

[Nankuraniza]

Anung school mo?

 

[Nankuraniza]

A. The problem asks for the work done by the disc
W = F x d
W = ( torque x moment of inertia) x (10 x 2 pi r)
B. It then asks about the KE
W= to the change in kinetic energy
Since the problem is in uniform motion then
W = KE
C. Find the angular speed
You can use this formula w = v/r or
You could equate the formula of KE and solve for the angular speed. Hanging kasi problem bigay ng pof mo.


Pero kung totousin zero work naman talaga yan kasi nga zero displacement yan kasi the motion is in the circle

 

[pisiks is hard]

maraming salamats po, btw. pwede po ba kita i-pm ? kung oks lang d naman sa namimilit HEHEHEH

 

[pisiks is hard]

Koya pwede po ba kita pa PM ? hehe