Page 121 - Microsoft Word - 1. BAHAN AJAR IPA KELAS 8 MGMP OK
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8. Hitunglah usaha yang dilakukan oleh gaya F3 pada benda tersebut.
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9. Hitunglah usaha total yang bekerja pada benda tersebut.
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10. Perhatikan gambar berikut.
Doni dan Rio memindahkan sebuah kotak kayu berdua. Doni menarik kotak
tersebut dengan gaya 200 N dan Rio mendorongnya dengan gaya 300 N. Kotak tersebut
berpindah sejauh 30 m ke arah kanan. Hitunglah besarnya usaha total yang dilakukan
kedua anak tersebut dalam kegiatan itu.
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11. Tuliskan enam kegiatan di mana kamu melakukan usaha secara IPA yang biasa kamu
lakukan setiap harinya.
(1) ....................................................................................................................................................
(2) ....................................................................................................................................................
(3) ....................................................................................................................................................
(4) ....................................................................................................................................................
(5) ....................................................................................................................................................
(6) ....................................................................................................................................................
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