Impulse And Momentum

A particle of mass M = 0.2 kg is initially at rest in the xy-plane at a point (x = \(-\)l, y = \(-\)h), where l = 10 m and h = 1 m. The particle is accelerated at time t = 0 with a constant acceleration a = 10 m/s² along the positive x-direction. Its angular momentum and torque with respect to the origin, in SI units, are represented by \(\overrightarrow L\) and \(\overrightarrow \tau\) respectively. \(\widehat i\), \(\widehat j\) and \(\widehat k\) are unit vectors along the positive x, y and z-directions, respectively. If \(\widehat k\) = \(\widehat i\) \(\times\) \(\widehat j\) then which of the following statement(s) is(are) correct?