A particle moves in XY plane under the influence of a force such that its linear momentum is
P=A[(cos kt)i + (sin kt)-j)], where A and k are positive constants.
a) The magnitude of the force is Ak
3) The angle between force and momentum is 90⁰
c) The angle between force and momentum is 180⁰
d) The angle between acceleration and velocity vectors is always t/2
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