# Moments of Inertia

## Homework Statement

part a) A block of mass m slides up an incline with an initial speed v0. The incline is on an angle,
Code:
&theta;
, and block stops sliding at height H.
-If the incline is frictionless, determine the max height H to which the block will rise, in terms of given quantities and appropriate constants.

part b) A thin hoop of mass m and radius R slides up an incline with an initial speed v0. The incline is on an angle,
Code:
&theta;
, and block stops sliding at height H.
-If the incline is frictionless, determine the max height H to which the hoop will rise, in terms of H and the given quantities.

## Homework Equations

thin hoop I = MR2

## The Attempt at a Solution

part a)

mgH = 1/2 mv02
therefore, H = (1/2)(v02/g)

& wouldn't part b be the same answer? or am I missing something mathematically?

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Andrew Mason