Question

Which of the following never occurs during the orbit of a planet. Question 5 options: Acceleration is perpendicular to velocity Acceleration is angled opposite to velocity Acceleration is angled in the same direction as velocity Acceleration is in the same direction as velocity

Answer 1

If a planet moves in an orbit around a star under the central force, then, the acceleration is always towards the center,
   
And the velocity is
   
Now in an orbit is never zero. So, in an orbital motion, velocity and acceleration can't be in the same direction.
There is always a component of the velocity in the direction thatis not there in the case for the acceleration.
  So, the last option is correct.