A vector vec(L)(t) of fixed magnitude lies in XY-plane. It rotates at a constant angular velocity of vec(w)=(3"rad/s")hat(k). Find the value of (d)/(dt)(vec(L)(t)) at the instant when vec(L)=3hat(i)+4hat(j)

A vector vec(L)(t) of fixed magnitude lies in XY-plane. It rotates at

1.	A vector vec(L)(t) of fixed magnitude lies in XY-plane. It rotates at a constant angular velocity of vec(w)=(3"rad/s")hat(k). Find the value of (d)/(dt)(vec(L)(t)) at the instant when vec(L)=3hat(i)+4hat(j)
Answer» `-12hat(i)+9ahat(J)` `12hat(i)-9hat(j)` `-9hat(i)+12hat(j)` `9hat(i)-12hat(j)` ANSWER :A