A Solid Uniform Disk Is Rolling Without Slipping Along a Horizontal

Multiple Choice

A solid uniform disk is rolling without slipping along a horizontal surface with a speed of 4.5 m/s when it starts up a ramp that makes an angle of 25° with the horizontal.What is the speed of the disk after it has rolled 3.0 m up as measured along the surface of the ramp?

A) 4.0 m/s
B) 1.9 m/s
C) 2.1 m/s
D) 6.8 m/s
E) 8.0 m/s