A bookshelf is 2m long, with supports at its end (p and q). A book weighing 10N is placed in the middle of the shelf. what are the upward forces?

Question

02-11-2018
Physics

contestada

A bookshelf is 2m long, with supports at its end (p and q). A book weighing 10N is placed in the middle of the shelf. what are the upward forces?

Respuesta :

Otras preguntas

Which sentence uses a verb that agrees with its compound subject? A.Either calculators or an adding machine make an accountant's work easier. B.Both cows and

What is 2069 rounded to the nearest 1000

Explain what surface tension is.

Can a camel survive in : Arctic , desert , town , forest and ocean?

How to translate equation into a sentence. 7(p+23)=102

in what ways is the Holy Land an important site for all three monotheistic faiths

lauran's shoe organizer can hold 5 pairs of shoes of each row . how many rows will lauren need need if she has 24 pairs of shoes ?

What two phase changes occur between vapor water and liquid water and at what temperature does each phase change take place

a region in which there is a high probability of finding an electron is called a field

Ammimochi Ammimochi · Answer 1 · 2018-11-02T15:26:47+01:00

Ammimochi Ammimochi

02-11-2018

If the book is placed in the middle, the forces acting on p and q is 5N. If the book is moved 50 cm from q, the forces at p and q can be solved by doing a moment balance

With p as the pivot;

Fq (2 m) = 10 N (0.5 m)

Fq = 2.5 N

Fp = 10 N - 2.5 N = 7.5 N

Answer Link