I think # 10 is actually B by virtue of the fact that there is a loss in G.P.E and a gain in K.E ..... and He cannot have G.PE if he is already at the bottom of the hill
hello good day i was wondering if you could give us a chance to answer the question before giving the answer in future videos. i learn better that way and although this is my last exam there might be someone who learns better that way as well.
it is not B the reason for this is because it started off by saying the person is moving down the hill if they said the person was stationary before coming down the hill then it would be potential energy but because he was already moving kinetic energy is gain until he stop at the bottom of the hill and then it become potential energy since all objects have potential energy but it would be lower compare to when he was on the top of the hill