A Solid Sphere of Mass 2

Multiple Choice

A solid sphere of mass 2.5 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15° and rolls to the bottom.The upper end of the ramp is 1.6 m higher than the lower end.What is the linear speed of the sphere when it reaches the bottom of the ramp? (Note: I = 0.4MR² for a solid sphere,and g = 9.8 m/s². )

A) 4.7 m/s
B) 22.4 m/s
C) 5.6 m/s
D) 3.3 m/s