(Irod+mr2) where r is the instantaneous distance of the insect from O. Therefore, τ = mω2r(
dr]
dt
) = 2mrωv = 2mvω(vt) = 2mv2ωt ⇒ τ α t Since the insect stops at the other end, v = 0 and τ = 0. Therefore, the resultant plot is a simple straight line.