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Question 3 Soalan 31 Figure 3-1 shows a broken vehicle pulled by a power winch on a tow truck at a constant speed of v

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Question 3 Soalan 31 Figure 3-1 shows a broken vehicle pulled by a power winch on a tow truck at a constant speed of v = 1.0 m/s. Use mi = 680 kg, g = 9.81 m/s and 1 hp = 746 Watts. [Rajah 3-1 menunjukkan sebuah kenderaan rosak yang ditarik oleh sebuah win kuasa yang terletak di atas sebuah trak tunda pada kelajuan seragam v = 1.0 m/s. Use my = 680 kg, g = 9.81 m/s dan 1 hp = 746 Watts. ] (i) Compute the coefficient of kinetic friction between the broken vehicle wheels and the incline if the power output of the winch is 5.0 hp. [Kirakan pekali geseran kinetik di antara roda kenderaan rosak tersebut dan cerun sekiranya keluaran kuasa bagi win adalah 5.0 hp.] (5 Marks/ Markah) (ii) If the winch suddenly increases the power output to 8.2 hp, calculate the instantaneous acceleration of the broken vehicle. [Sekiranya win tersebut dengan tiba-tiba meningkatkan keluaran kuasa kepada 8.2 hp, kirakan pecutan serta-merta bagi kenderaan rosak berkenaan.] (5 Marks/ Markah) U

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