A particle is acted on by two torques about the origin: τ
, has a magnitude of 6.5 N⋅m and is directed in the positive direction of the x axis, and τ
2
​
has a magnitude of 8.5 N⋅m and is directed in the negative direction of the y axis. In unit-vector notation, find d ℓ
ldt, where ℓ
is the angular momentum of the particle about the origin. Number i
^
j) Units