I didn't got it as well as I can ><
may be there are some information I missed
Nice , thank you
Thank you Chris and Melody
Melody Can you show me your simplification ?
for b , why you put work = kinetic energy
It must be The difference between the kinetic energy
can you illustrate it for me ~ ?
Nice , Thank you seven up
Thank you alan for explain it
well .
Thank you Alan .
Alan , can I resolve the displacement vector ?
Thank you alan
now its clear
so what do you think the answer of the example !!