Finding torque to life object at a certain acceleration

[bambam123]

Homework Statement

A motor is connected to a solid cylindrical drum with a diameter of 1.2 m and a mass of 51 kg. A massless rope is attached to the drum and tied at the other end to a 38 \rm kg weight, so the rope will wind onto the drum as it turns.

What torque must the motor apply if the weight is to be lifted with an acceleration of 1.1 m/s^2

Homework Equations

i have no idea how to do this problem. Could somebody give a me a step by step walkthrough

The Attempt at a Solution

i first did Newtons second law for the mass hanging. i found the force of tension. then i took the force of tension and multiplied it by radius of drum and i got the torque. but i keep getting the wrong answere

 

[bambam123]

ignore the rm after the 38

 

[Redbelly98]

Welcome to Physics Forums.

Homework Equations

i have no idea how to do this problem. Could somebody give a me a step by step walkthrough

Sorry, but that is not how we give help here.

The Attempt at a Solution

i first did Newtons second law for the mass hanging. i found the force of tension. then i took the force of tension and multiplied it by radius of drum and i got the torque. but i keep getting the wrong answere

Show us what you got for the tension and torque, and please show how you got it. Then we can provide help.