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Solve this:

**19. **The instantaneous velocity of a particle is equal to time derivative of its position vector and the instantaneous acceleration is equal to time derivative of its velocity vector. Therefore:

(1) the instantaneous velocity depends on the instantaneous position vector

(2) instantaneous acceleration is independent of instantaneous position vector and instantaneous velocity (3) instantaneous acceleration is independent of instantaneous position vector but depends on the instantaneous velocity

(4) instantaneous acceleration depends both on the instantaneous position vector and the instantaneous velocity.

The instantaneous acceleration is independent of instantaneous position vector but depends on the instantaneous velocity .

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