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 $25 ^ { \circ }$ 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) 8.0 m/s
E) 6.8 m/s

Question

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 $25 ^ { \circ }$ 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)  8.0 m/s
E)  6.8 m/s

Quizplus · Accepted Answer

The Answer of 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 $25 ^ { \circ }$ 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)  8.0 m/s
E)  6.8 m/s

A Solid Uniform Disk Is Rolling Without Slipping Along a Horizontal