A grinding wheel is a uniform cylinder with a radius of $8\mathrm{.}55$ cm

and a mass of $0\mathrm{.}400$ kg

$.$

Part A

Part complete

Calculate its moment of inertia about its center.

Express your answer with the appropriate units.

I

$=$

$1\mathrm{.}46\backslash$times $103$ kg$$m$2$

Previous Answers

Correct

Part B

Calculate the applied torque needed to accelerate it from rest to $2000$ rpm

in $3\mathrm{.}50$ s

if it is known to slow down from $1750$ rpm

to rest in $53\mathrm{.}0$ s

$.$

Express your answer with the appropriate units.