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jawapan soalan 3 a) dan b) betul. Tahniah

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soalan 3 c) kena guna teorem pythogaras utk mencari jarak condong. Jarak condong ialah 5m.
kerja = Daya x Seasaran
= 200 N x 5m
= 1000 J

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soalan no 4 guna rumus kerja = Daya x Sesaran
= ( 75 kg x 10N kg-1) x 2.2 m
= 750 N x 2.2 m
= 1650 J

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Teruskan semangat belajar Jeeva. Tahniah

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Kuasa = kerja / masa
= 1650 J / 10 s
= 165 W

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ian xavier