Sebuah cakram mempunyai momen inersia 15 kg m².hitunglah kerja yang dibutuhkan untuk meningkatkan kelajuannya dari putaran/s menjadi 7 putaran /s
FadlyHermaja
![W=\frac{1}{2}I(\omega_2^2-\omega_1^2)\\ \\W=\frac{1}{2}\times15\times[(7*2\pi)^2-(3*2\pi)^2]\\ \\W=1200\pi^2~Joule](https://tex.z-dn.net/?f=W%3D%5Cfrac%7B1%7D%7B2%7DI%28%5Comega_2%5E2-%5Comega_1%5E2%29%5C%5C+%5C%5CW%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes15%5Ctimes%5B%287%2A2%5Cpi%29%5E2-%283%2A2%5Cpi%29%5E2%5D%5C%5C+%5C%5CW%3D1200%5Cpi%5E2%7EJoule "W=\frac{1}{2}I(\omega_2^2-\omega_1^2)\\ \\W=\frac{1}{2}\times15\times[(7*2\pi)^2-(3*2\pi)^2]\\ \\W=1200\pi^2~Joule")
0 votes
Thanks 0
More Questions From This User See All
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.