An almost-conical toy top (Figure P12.71) that has radius \(R=20 \mathrm{~mm}\) and inertia \(0.125 \mathrm{~kg}\) is spun up using a force of \(5.0 \mathrm{~N}\) and a string that is \(1.0 \mathrm{~m}\) long. What are

(a) the work done on the top,

(b) its kinetic energy, and

(c) its final rotational speed? The shape factor for this top about its axis of symmetry is 0.35 .

Data from Figure P12.71

Transcribed Image Text:

-R-