A particle moves in the x-y plane under ...

A particle moves in the x-y plane under the action of a force `vecF` such that the value of its linear momentum `vecP` at any time t is `P_(x)=2` cost and `p_(y)=2sint`. What is the angle `theta` between `vecF` and P at a given time t?

`pi/6`

`pi`

Zero

`pi/2`

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