tmua.me Medium Set A Paper 1 · Question 13

tmua.me papers

tmua.me Medium Set A Paper 1 · Q13

Paper 1Geometry

A point $P$ moves at constant speed around a fixed vertical circle, completing one revolution in $36$ seconds. The greatest and least heights of $P$ above horizontal ground are $18$ metres and $2$ metres, respectively.

During one complete revolution, for how many seconds is $P$ more than $14$ metres above the ground?

6

9

12

18

24

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