could someone please help with this question? (1 Viewer)

[claref1989]

hi could someone help me with this multiple choice question on this paper question 3?? I don't really know how to interpret the graph to get velocity and g-forces.. thanks any help would be great (the answer is d):
http://www.boredofstudies.org/courses/science/physics/2003_Physics_T_STANSW_STANSW.pdf

 

[helper]

Slope=change in momentum/time=Force
The maximum slope between 6 and 16s is about 4900N or 5g.

Momentum=mv
Max momentum = 72000 Ns
so v=72000/100=720m/s

 

[claref1989]

ok that's great.. thank you!