A Solid Sphere of Mass 4 $\degree$ ,And Rolls to the Bottom

question 18

Multiple Choice

A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15 $\degree$ ,and rolls to the bottom.The upper end of the ramp is 1.2 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)4.1 m/s
• C)3.4 m/s
• D)2.4 m/s

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