Westonci.ca is the best place to get answers to your questions, provided by a community of experienced and knowledgeable experts. Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

How do u work out weight c and d and what r the answers

How Do U Work Out Weight C And D And What R The Answers class=

Sagot :

AL2006
The whole secret of things that are balanced on a pivot like this is:

The sum of all of the 'moments' is equal on both sides.

The moment of each weight is  (the weight) times (its distance from the pivot). 
If you add up those for each eight on one side, it has to be equal to the sum
of all the ones on the other side.

2. a). 
The moments on the right side are:  (4 x 0.15) and (1 x 0.40).
They add up to  (0.60 + 0.40) = 1.00

The only moment on the left side is  (C x 0.25).  Both sides have to be equal.

C x 0.25 = 1.00

Divide each side by 0.25, and you have    C = 4 N .

===========================================

2. b).
The only moment on the left side is  (5 x 0.40) = 2.00

The moments on the right side are (1 x 0.20) and (D x 0.30)
They add up to  (0.3D + 0.2).

Both sides have to be equal.    0.3D + 0.2 = 2.0

Subtract 0.2 from each side:      0.3D  =  1.8

Divide each side by 0.3:                D = 6 N
Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.