forces

Question 1

what is the center of mass

Answer 1

where the mass of the object appears to act

Question 2

how do you determine the center of mass of an irregular object

Answer 2

hang it from many points, draw vertical line from where the object is attached on the string, repeat until lines intersect

Question 3

is there always a right angle between the normal and the frictional force?

Answer 3

yes

Question 4

what is the relationship between drag force and velocity

Answer 4

d proportional to V squared

Question 5

what is the relationship between drag force and area

Answer 5

directly proportional

Question 6

what is the resultant force in terminal velocity

Answer 6

0, because it isn’t accelerating