Fig. 3.1 depicts an archer drawing an arrow towards a target. The labels on the diagram are: bow string, arrow, archer, bow, and target.
(a)[2]
Show that the mean force exerted by the archer while pulling the string back is about $240\,\text{N}$.
(b(i))[3]
Calculate the arrow's initial speed $v$.
(b(ii))[2]
Explain why the speed of the arrow when it reaches the target is smaller than the value in (b)(i).
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