A 3.0 kg toy car moves along an x axis with a velocity given by v =

Question:

A 3.0 kg toy car moves along an x axis with a velocity given by v = -2.0t3i m/s, with t in seconds. For t > 0, what are?
(a) The angular momentum L of the car and
(b) The torque r on the car, both calculated about the origin? What are?
(c) L and
(d) r about the point (2.0 m, 5.0 m, 0)?
(e) L and
(f) r about the point (2.0 m, -5.0 m, 0)?