dan964
what
noA gives a = 2 not a = 4, your friend may have fucked up? to be fair i may have as well LOL
ffs faisal 10/10
for A
a= v dv/dx
= 2 x 2 (cos (x-1))
= 4
for B
a = v dv/dx
= 2 4/x
= 8 which is wrong
you forgot that dv/dt and dv/dx ain't the same thing