Question
Bahasa Melayu
Pada suatu graf laju-masa, gerakan sebuah kereta ditunjukkan dalam tiga peringkat: kereta itu memecut secara seragam dari (0 s, 10 m/s) ke (5 s, 30 m/s); kemudian bergerak pada 30 m/s yang malar dari (5 s, 30 m/s) ke (10 s, 30 m/s); kemudian menyahpecut secara seragam dari (10 s, 30 m/s) ke (14 s, 0 m/s). Cari jumlah jarak yang dilalui.
English
On a speed-time graph, a car's motion is shown in three stages: it accelerates uniformly from (0 s, 10 m/s) to (5 s, 30 m/s); then travels at a constant 30 m/s from (5 s, 30 m/s) to (10 s, 30 m/s); then decelerates uniformly from (10 s, 30 m/s) to (14 s, 0 m/s). Find the total distance travelled.
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