A Rocket Orbits a Planet in a Circular Orbit at a Constant

question 13

Multiple Choice

A rocket orbits a planet in a circular orbit at a constant speed as shown in the drawing. Note these arrows:
-Suppose that the radius of the circular path is r when the speed of the rocket is v and the acceleration of the rocket has magnitude a.If the radius and speed are increased to 2r and 2v respectively, what is the magnitude of the rocket's subsequent acceleration?

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