How Does a One-Dimensional Impulse Force Affect an Object's Motion?

[04yellowgt]

Homework Statement

A one-dimensional impulse force acts on a 3.0-kg object, as described in the graph below.

http://qaboard.cramster.com/Answer-Board/Image/2006714849276328846376778312506582.jpg

Find:
(a) The magnitude of the impulse given to the object.
(b) The magnitude of the average force.
(c) The final speed if the object had an initial speed of 6.0 m/s.

Homework Equations

F = (Po-P)/ (To-T)
?

The Attempt at a Solution

I have need some help here what my instructor has us read gives no help in solving 99% of our problems.


Thanks

 

[rock.freak667]

For a graph of y vs x, if you find the area under that graph, you get what the product xy represents.

 

[04yellowgt]

ok so would (b) be
(f+fo)/2
(900+0)/2
450N