Help with dynamics problems from college course

[Dayle]

hi all pelase can someone help me i have these questions to do and I am really finding my new college course hard i don't know where to start and they need to be in on thursday I am really stuck. i would appreciate it if anyone could help.

http://www.cruisewigan.com/3.jpg
http://www.cruisewigan.com/4.jpg

 

[Dmitri]

Dayle

Question 1:
Find angular momentum. How can you relate angular momentum, torque, and time?

Question 2:
Same procedure as in question 1 only in this case time is given, find torque

Question 3:
Draw FBDs of the drum and the lift. Use Newton's second Law.

Question 4:
FBD is the key to all of the problems. Use Newton's second Law to find alpha. You have time in this problem therefore the approche is to use momentum.

 

[vanesch]

Dayle,
do we have to print out the worksheet, fill in our (your?) name and send it to your professor by DHL so that he gets it on thursday ? You forgot to give his address
Please read the guidelines: you're supposed to show some work first.