Black on a Spring A block on a horizontal frictionless surface attached to a spring. Diagram is not to scale. Refer to the above diagram Stock on a Spring to answer this question. A block on a horizontal frictionless surface is attached to a spring. as shown in the diagram. When the block is released, it oscillates back and forth between the positions indicated by the vectors jinn): . Which points (I. II. and Ill} best indicate where the acceleration of the block will have the greatest magnitude? Select one: 0 a. | and ll 0 b. It only O c. It and Ill 0' d. land ||l A block attached to a spring with a spring constant of 8.45 x 104 mm oscillates on a horizontal frictionless surface with an amplitude of 21.8 cm. ifthe maximum speed of the mass is 9.65 mfs. then the block has a mass of |:| kg. (Record your threedigit answer on the answer sheet.)