How Do You Calculate Tension in Ropes and Vertical Forces in a Plank Problem?

[yellow06]

Hi everyone...how I wish someone could share their knowledge and help me through this..im having a difficulty on finding the right FBD of this problem.. I tried solving it but still I couldn’t get the right answer… anyone please help?.

Here is the question:

The window washer A and B support themselves and the 15-kg uniform plank CD by pulling down on the two ropes.

Determine (a) the tension in each rope; and (b) the vertical force that each man exerts on the plank.

(The required at question “b” are the normal force of A and B.)
Please?.. it would be very much appreciated..

THANKS in advance…

 

[Saitama]

Welcome to the board! :)

Show us your attempts first before asking for any help. :)

 

[phinds]

if you look in the rules, you'll see the proper format for posting homework problems.