In the Figure below, we see a 500 gram block resting on the horizontal portion of a "track", whose left end is curved upwards.The horizontal portion of the track is frictionless, except for a 50.0 cm long “rough" portion, shown in the Figure, where thecoefficient of kinetic friction is 0.300. The curved portion of the track is frictionless. The block is held against a spring (whichhas a stiffness constant of 500 N/m), compressing the spring by 10.0 cm. Then the block is released from rest. (NOTE: The blockis not attached to the spring; it is just held against the end of the spring.) For simplicity, assume that g = 9.80 m/2.50.0 cm 8. Find the work done on the block by friction, assuming that the block makes it all of the way through the 50.0 cm long roughportion of the track where friction is significant.A. - 0.0750 J.B. - 1.47 J.C. - 0.735 J.D. 735 JE. - 735 J.9. Find the work done on the block by the normal force while the block slides along the horizontal portion of the track.А.zero.В. 735 JC. - 1.47 J.D. -0.0750 J.E. -0. 735 J.10. Find the work done on the block by gravity while the block slides along the horizontal portion of the track.A. 2.45 JB. -0. 735 J.C. zero.D. 1.77 J.E. - 1.77 J.11. True or False: While the block slides up along the curved portion of the track, the work done on the block by the normalforce equals zero?A. True.B. False.

8. Find the work done on the block by friction, assuming that the block makes it all of the way through the 50.0 cm long rough portion of the track where friction is significant. A. - 0.0750 J. B. - 1.47 J. C. - 0.735 J. D. 735 J E. - 735 J. 9. Find the work done on the block by the normal force while the block slides along the horizontal portion of the track. A. zero. B. 735 J C. - 1.47 J. D. - 0.0750 J. E. -0. 735 J. 10. Find the work done on the block by gravity while the block slides along the horizontal portion of the track. A. 2.45 J B. - 0. 735 J. C. zero. D. 1.77 J. E. - 1.77 J.

8. Find the work done on the block by friction, assuming that the block makes it all of the way through the 50.0 cm long rough portion of the track where friction is significant. A. - 0.0750 J. B. - 1.47 J. C. - 0.735 J. D. 735 J E. - 735 J. 9. Find the work done on the block by the normal force while the block slides along the horizontal portion of the track. A. zero. B. 735 J C. - 1.47 J. D. - 0.0750 J. E. -0. 735 J. 10. Find the work done on the block by gravity while the block slides along the horizontal portion of the track. A. 2.45 J B. - 0. 735 J. C. zero. D. 1.77 J. E. - 1.77 J.

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