6. Outside the sphere, at what distance from the sphere's center are there points where the gravitational acceleration is ag/3? (A uniform solid sphere of radius R produces a gravitational acceleration of a_g on its surface.) (A) R (B) R (C)2R (D)3R (E)None of the above

Problem of7and8 :In Fig. 2, the block 1 has mass m₁ = 460 g and block 2 has mass m₂ = 500 g, and the pulley, which is mounted on a horizontal axle with negligible friction, has radius R = 5 cm. When released from rest, block 2 falls 75 cm in 5 s without the cord slipping on the pulley.7. What is the magnitude of the acceleration of the blocks? (A)0.02 m/s² (B)0.2 m/s² (C)2 m/s² (D)20 m/s² (E)None of the above

6. Outside the sphere, at what distance from the sphere's center are there points where the gravitational acceleration is a_g/3? (A uniform solid sphere of radius R produces a gravitational acceleration of a_g on its surface.)
(A) R
(B) R
(C)2R
(D)3R
(E)None of the above

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