Answer:
Therefore the correct option is sin(5x).
Explanation:
i) The hammer thrower rotates exactly 5 times in 2
seconds.
Therefore one rotation is completed in
seconds.
ii) Since the motion of the hammer is represented by a sine function therefore
one rotation is considered to be one full cycle and the time period of that cycle
is given in equation i) and it is T =
seconds.
iii) the equation of a sine function is given by sin(2

) which in this case would
be sin(2
×
× x) = sin(5x)
iv) Therefore the answer is sin(5x)