A Box Slides Down a Frictionless Incline,and a Hoop Rolls

question 5

Multiple Choice

A box slides down a frictionless incline,and a hoop rolls down another incline.Both inclines have the same height,and both the box and the hoop have the same mass.If both objects start from rest,upon reaching the bottom of the incline which one will have the greater kinetic energy and which one will have the greater speed?

• A)The box will have both the greater kinetic energy and the greater speed.
• B)The hoop will have both the greater kinetic energy and the greater speed.
• C)Both will have the same kinetic energy,but the hoop will have the greater speed.
• D)Both will have the same kinetic energy,but the box will have the greater speed.

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