Q. In Figure, a block slides along a path that is without friction until the block reaches the section of length L=0.85 m, which begins at height h=2.0 m on a ramp of angle 0-45°. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A? A. 8.9 m/s B. 6.9 m/s C. 4.9 m/s D. 2.9 m/s E. 1.9 m/s

Q. In Figure, a block slides along a path that is without friction until the block reaches the section of length L=0.85 m, which begins at height h=2.0 m on a ramp of angle 0-45°. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A? A. 8.9 m/s B. 6.9 m/s C. 4.9 m/s D. 2.9 m/s E. 1.9 m/s