- #1

jamesdubya

- 33

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I had just asked a question about boats going across a river but that question and this question really have me stumped.

http://img138.imageshack.us/img138/7910/68512243.png

A)Find the acceleration using Newtons laws

B)Find the velocity using Conservation of Total Mechanical Energy.

Idisk=1/2mR^2 (what is R?)

M1=T+Ff-MG=ma

M2=1/2mR^2-t+t=ma

M3=-T-Mg=ma

I doubt these are right but I tried, I'm terrible at summing forces.

A)FnMuk-1.1(9.8)+1/2mR^2-t+t-t-Mg=m(a)

I know I am way off but just so you can see I at least tried.

## Homework Statement

http://img138.imageshack.us/img138/7910/68512243.png

A)Find the acceleration using Newtons laws

B)Find the velocity using Conservation of Total Mechanical Energy.

## Homework Equations

Idisk=1/2mR^2 (what is R?)

M1=T+Ff-MG=ma

M2=1/2mR^2-t+t=ma

M3=-T-Mg=ma

I doubt these are right but I tried, I'm terrible at summing forces.

## The Attempt at a Solution

A)FnMuk-1.1(9.8)+1/2mR^2-t+t-t-Mg=m(a)

I know I am way off but just so you can see I at least tried.

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