where did that 15 come from? that's what i get for having a jumbled scratch sheet, i guess.
and wow, i guess 40*20 + 39 does make sense, doesn't it. i guess i just got caught up in making things difficult for myself. thanks!
I'm a bit confused by this question. If you could help me check my work, that'd be great.
Thanks.
Homework Statement
A 40kg object with an initial velocity \vec{v}_0 = (20 \text{m}/\text{s})\hat{i} is accelerated by a varying net force \vec{F}(t)=\left[ \left( 3.0...