statics problems

Question 1

what are statics problems always in the state of?

Answer 1

equilibrium

Question 2

first step in solving statics problems?

Answer 2

draw the force diagram, only adding forces that are on the rod and taking care to record all that do

Question 3

second step in solving statics problems?

Answer 3

write moments equation: total clockwise moment = 0
select a point to take moments about which eliminates as many unknowns as possible (forces acting through point will not be included in moments equations

Question 4

step 3 to solve statics problems?

Answer 4

generate 2 further equations using RF = ma = 0 (one for horiz, one for vert)
resolve straight down or straight across - not perpendicular/parallel to rod

Question 5

final step to solve statics problems?

Answer 5

solve equations for required answers (setting up equations usually get 6 marks; solving gets the rest)

Question 6

important exam technique for statics problems?

Answer 6

don’t label a, b or c for any parts of the question

Question 7

what are the types of statics scenarios?