Question

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

Answer 1

Answer:

(4) 90°

Hope it Helped.

Answer 2

Answer:

Heya mate.......

Option 4 is correct answer.....................