MT Moderator's answer to Hi's Secondary 4 E Maths question.
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Don't think this is E-maths.
Remember, differentiating displacement (with t) gives velocity, differentiating velocity gives acceleration.
Remember, differentiating displacement (with t) gives velocity, differentiating velocity gives acceleration.
Date Posted:
8 years ago
Actually to be pedantic, for part (iv) the answer I gave is for average velocity, which happens to be the same as average speed.
However, if the question asks for average speed for larger t values, the method will only work for velocity, not speed.
Think about it as an exercise. What is the t for the solution not to work?
However, if the question asks for average speed for larger t values, the method will only work for velocity, not speed.
Think about it as an exercise. What is the t for the solution not to work?
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