Eric Nicholas K's answer to Annela's Secondary 3 E Maths Singapore question.
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Good evening Annela!
Here is the relevant graph for Q18.
(a) Value of a is 7 and value of b is 115.
(b) Drawn but not using the scale since the scale cannot be set here.
(c) (i) When v = 45 m/s, t ~ 7.11 s.
(c) (ii) By drawing a tangent, the gradient of the graph is 10. This gradient with value 10 means that the particle is moving with an acceleration of 10 m/s2.
Here is the relevant graph for Q18.
(a) Value of a is 7 and value of b is 115.
(b) Drawn but not using the scale since the scale cannot be set here.
(c) (i) When v = 45 m/s, t ~ 7.11 s.
(c) (ii) By drawing a tangent, the gradient of the graph is 10. This gradient with value 10 means that the particle is moving with an acceleration of 10 m/s2.
Date Posted:
4 years ago