Saturday, January 12, 2013

Energi Kinetik – Rumus, Persamaan dan Penjelasan

Gaya merupakan penyebab perubahan gerak benda. Untuk memindahkan suatu benda diperlukan energi. Energi yang dimiliki oleh benda yang sedang bergerak disebut energi kinetik. Adakah hubungan antara usaha yang dilakukan oleh gaya-gaya konstan dengan energi kinetik benda selama benda bergerak karena gaya tersebut?

Jika pada sebuah benda dengan massa m bekerja gaya konstan sebesar F, sehingga benda berpindah sejauh s searah dengan gaya F, maka usaha yang dilakukan oleh gaya F selama perpindahan benda dapat dinyatakan dengan: W = F . S

Berdasarkan hukum II Newton : F = m . a
Pada GLBB didapat persamaan :

penjelasan mengenai energi kinetik disertai dengan rumus dan persamaan

Ek = energi kinetik (joule)
Eko = energi kinetik mula-mula
ΔEk = perubahan energi kinetik

Dari uraian tersebut didapat bahwa pertambahan energi kinetik melalui usaha merupakan proses alih energi.


Penjelasan Materi Lainnya



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