Tackling Difficult Homework Integrals

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nysnacc
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Homework Statement


upload_2016-10-14_18-1-0.png


Homework Equations


∫ F dt = mv

The Attempt at a Solution


I have
∫ T -mg dt
= ∫ 100+2t2 - mg dt
= ∫ 100-9000*9.81 +2t2 dt

but then I got negative impulse ...??
 
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Oh I see 100+ 2t^2 in KN... mg should also in kN
 
nysnacc said:
Oh I see 100+ 2t^2 in KN... mg should also in kN
Whatever makes all the units consistent.