A solid, uniform, spherical boulder starts from rest and Rough rolls down a 50.0 [m] hill, as shown at the figure at the 50.0 m right. The top half of the hill is rough enough to cause Smooth the boulder to roll without slipping, but the lower half is covered with ice and there is no friction. What is the translational speed of the boulder when it reaches the bottom of the hill? Hint: The moment of inertia of a uniform spherical boulder pivoted at its center is I = MR²2

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A solid, uniform, spherical boulder starts from rest and
Rough
rolls down a 50.0 [m] hill, as shown at the figure at the
50.0 m
right. The top half of the hill is rough enough to cause
Smooth
the boulder to roll without slipping, but the lower half
is covered with ice and there is no friction. What is
the translational speed of the boulder when it reaches the bottom of the hill?
Hint: The moment of inertia of a uniform spherical boulder pivoted at its center is I = -MR²
Transcribed Image Text:A solid, uniform, spherical boulder starts from rest and Rough rolls down a 50.0 [m] hill, as shown at the figure at the 50.0 m right. The top half of the hill is rough enough to cause Smooth the boulder to roll without slipping, but the lower half is covered with ice and there is no friction. What is the translational speed of the boulder when it reaches the bottom of the hill? Hint: The moment of inertia of a uniform spherical boulder pivoted at its center is I = -MR²
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