Q: A time varying force F = 2t is applied on a spool as shown in the figure. The angular momentum of the spool at time t, about bottom most point is
(a) $\frac{r^2 t^2}{R}$
(b) $\frac{(R + r)^2 t^2}{r}$
(c) $ R t^2$
(d) $\frac{R^2 t^2}{r}$
Ans: (c)
Science|Math|Engineering
Q: A time varying force F = 2t is applied on a spool as shown in the figure. The angular momentum of the spool at time t, about bottom most point is
(a) $\frac{r^2 t^2}{R}$
(b) $\frac{(R + r)^2 t^2}{r}$
(c) $ R t^2$
(d) $\frac{R^2 t^2}{r}$
Ans: (c)