hey i stuffed up majorly in the last part of q9, for mr, i calculated using the mrs a=1.06 when a=1, and for the mrs. on i said a=1, i accidently swapped them around, so fucking dumb, do u rekon i lost all marks for this half of q9
for the car one, u forgot that Ke=Pe only half way up the hill, u have to double it to get the proper length,
ALL in all i thought the test was fairly easy, not as easy as the previous years though,