Chapter 11, Problem 27P

SSM At one instant, force $\stackrel{\to }{F}=4.0\text{^}\text{N}$ acts on a 0.25 kg object that has position vector $\stackrel{\to }{r}=\left(2.0\hat{i}-\text{2}\text{.0}\hat{k}\right)\text{m}$ and velocity vector $\stackrel{\to }{v}=\left(-5.0\hat{i}+\text{5}\text{.0}\hat{k}\right)\text{m}/\text{s}$. About the origin and in unit-vector notation, what are (a) the object’s angular momentum and (b) the torque acting on the object?