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Chain Rule, Log Differentiation & Rate of Change · Question 4 of 130

How far is the particle from the point at the start?

Question 4

EasyOriginal question

A particle's distance from a point after $t$ seconds is $s = \sqrt{t^{2} + 16}$ metres.

How far is the particle from the point at the start?

0 mCorrect answerYour answer4 mCorrect answerYour answer5 mCorrect answerYour answer16 mCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

At $t = 0$ : $s = \sqrt{16}$ .
4 m.

Worth noting

16 is under the square root.

Concept: Reading a position function
Typical timeTypical: 90 s
Your timeYours: —

The rule this testsThe chain rule

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