Question

A particle of mass M is moving with constant velocity V along x axis in xy plane as shown in figure its angular momentum with respect to origin at any time T,if its position vector is r, is

Answer 1

please ask your question correctly so that I can answer it

Answer 2

since its velocity is along x axis
so we need only x component
now
M = constant and scalar
v = Vi I. e along x axis
r = ai + b j
L = r x p
where p = m x v
L = mvr ( - k)


bcoz ( J x I = - k)