Question

A particle moves in the x - y plane
influence of a force such that its linear momentum
is p(t) = li cos(at) - j sin(at)]B, where a and B
are constants. The angle between the force and
the momentum is Dope
(1) 0°
(3) 60°
(4) 90°
(2) 45°​

Answer 1

Explanation:

90

is

the

answer

for the above question

Answer 2

4th option

may be its right....