Rajah menunjukkan graf halaju melawan masa bagi suatu objek dalam tempoh 14 saat.
(a) What is meant by velocity?
Apakah yang dimaksudkan dengan halaju?
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(b) Calculate the total displacement travelled by the object from A to E
Hitungkan jumlah sesaran yang dilalui objek dari A ke E.
(c) Based on diagram, sketch the acceleration-time graph for the whole journey of the object.
Berdasarkan Rajah, lakarkan graf pecutan-masa bagi keseluruhan perjalanan objek itu.
Answer:
Rate of change of displacement
Total displacement = (1/2 x 4 x 10 ) + ( 6 x 10) + (1/2 x 2 x 10 ) - ( 1/2 x 2 x 10 )
=80 cm
