Specific questions/explanations

[appianway]

For kinetic energy you can also say that energy is conserved, so the work done on the block is its kinetic energy (ie ma * 1m = Ek)

I think a lot of people didn't look at how the tension influences the acceleration of the 0.1kg box, so a lot of people got the wrong acceleration from that and hence the wrong force.

[olly_s15]

for the box i got the acceleration as 2.5ms2

[Blakhitman]

ahh yea true.

hooray for consequentials.

[m@tty]

Why is that wrong force?

Net force on the 0.4kg block is meant to be 0.8 N..

That's basically what the whole argument was about before.

[rubiks]

i got 1J in that question too..

[Blakhitman]

Why is that wrong force?

Net force on the 0.4kg block is meant to be 0.8 N..

That's basically what the whole argument was about before.

lol nevermind me, I'm trying to do chem but also really pissed off so I'm kinda losing it.