Question

A figure skater is spinning with an angular velocity of +13.4 rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is +5.81 rad. Determine (a) her average angular acceleration and (b) the time during which she comes to rest.

Answer 1

givena W. = 13.4 sad/s. 0 = 5.8) rad. Vio By so labional Kinematic relation... @ wewe 210-0) (13.4) 2(5.81) 12 = -15.45 sad se d = 2 Vivo © We Wo Half-to) ? (o=o) t ولا لا 13.4 -15.45 ifa = 0.8 673 sec s