Added: 3 years ago
From: demosainscreative
Views: 6,718
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  • jangan miring? tu bukan asap tapi debu. kasihan si pelancarnya hahaha. buat semak. cuba pakai air. tak perlu dikemas dan jisim tinggi bermakna magnitud momentum lebih kuat. atau erti lainnya, tenaga kinetik lebih banyak diberi kepada roket bukan 'asap'. tapi jenis debu apa yg diguna ya, minta diajar tentang nilai density debu tersebut

  • Its Shape Look Quite Difficult......

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