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Form 2 Mathematics Video Questions and Answers on Linear Motion

The figure below shows a velocity-time graph of a particle moving along a West-East straight line, with velocity considered positive eastwards.

Use the graph to answer the following questions:
(a) Find the velocity of the particle:
(i) after 5 seconds.
(ii) after 15 seconds.
(iii) after 20 seconds.
(iv) after 40 seconds.
(b) Find the acceleration of the particle:
(i) during the first 5 seconds.
(ii) during the $15^(th$ second of the motion.
(iii) between the $18^(th$ and the $20^(th$ second.
(iv) between the $37^(th$ and the $41^(st$ second.
(c) Use area under the graph to find the distance covered by the particle:
(i) between the $10^(th$ and the $15^(th$ second.
(ii) between the $25^(th$ and the $35^(th$ second.
(iii) between the $20^(th$ and the $25^(th$ second.
(d) Find the average velocity:
(i) during the period from the $10^(th$ to $15^(th$ second.

(13m 16s)

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