Jack and his hunters reenact pig killings on a number of occasions. The one that you are probably referring to is the one that occurs after they fail to kill the boar, which had charged them as they were on their way from castle rock to the mountain searching for the beast. Robert acted the part of the boar and Jack shouted to his hunters, "Make a ring!" The boys began to hit Robert with the butts of their spears and then they got hold of his arms and legs. To quote from the book... 'Ralph, carried away by a sudden thick excitement, grabbed Eric's spear and Jabbed at Robert with it.' A little later we are told... 'Ralph too was fighting to get near, to get a handful of that brown, vulnerable flesh. The desire to squeeze and hurt was over-mastering.'
At first Ralph seemed simply puzzled by the sight of the pig's skull mounted on the stick. He wasn't part of the hunt which put it there and the only witness, Simon, died without ever telling Ralph about Jack's offering so Ralph had no idea why the skull was there or who had put it there. Ralph then seemed to feel uneasy and finally, sickened and filled with rage, he hit out at the skull, knocking it to the ground and breaking it in two. Then, being a practical boy, Ralph pulled the stick out of the ground for use as a possible weapon.
he is frightened
In a word frustrated, in chapter three, Huts on the Beach, when Ralph is attempting to explain the difficulty in getting anything done (like building shleters) when all the boys agree for the need to do things but then wander off and without actually doing anything Jack was only half listening as his mind was focused on how to catch pigs. To quote from the book... "They walked along, two continents of experience and feeling, unable to communicate."
he is angered that the fire goes out. jack gathered all the boys to kill the pig and the fire went out, while a ship was passing nearby. ralph accuses jack of letting the fire go out, then piggy ridicules jack. causing jack to lash out and hit piggy out of humiliation.
Although they have brought back meat, they have let the fire (the signal fire) go out. When Ralph, Piggy and Simon reach the mountain where the fire should be still smoking, the fire is completely out and they find that "a pile of unused fuel lay ready." It's not that they didn't have anything to throw on the fire. They just up and left it. All of them. No one stayed back to keep it going. No one was responsible enough.
The main reason for Ralph's fury is because he saw a ship on the horizon. If their signal was still going, they could have been seen and rescued.
Ralph senses the "rising antagonism, understanding that this was how Jack felt as soon as he ceased to lead." He could sense Jack trying to get back on top and be the one and only leader.
Ralph is angry
because he wants to be leader himself
The hunters torture Sam and Eric until they agree to join Jack's tribe.
It's because they don't have Piggy's glasses with which to start the fire.
Jack plans to hunt Ralph and kill him. Then he plans to mount Ralph's head on a stick sharpened at both ends as an offering to the beast.
Ralph is angry
Ralph is initially uneasy and disturbed by Jack and the hunters' savage behavior during the pig kill. However, he ultimately participates in the ritualistic dance with the others due to the primal energy it invokes.
Jack and his hunters go to Ralph's camp to steal the fire because they believe they need it for their own safety and to cook their food. Additionally, Jack wants to assert his power and control over the group by taking something that is essential for their survival.
i don't know ask jack ralphs or Jason ralphs they'll know
he likes Jack at first but then hateshim when Jack becomes savage.
Jack and his hunters try two strategies. Jack first had a boulder from the top of castle rock sent crashing into the thicket with the intention of either killing Ralph or driving him out of hiding. When this failed Jack then lit a fire, hoping to smoke Ralph out of the thicket.
Maurice and Robert.
Jack
because he wants to be leader himself
The hunters torture Sam and Eric until they agree to join Jack's tribe.
The boys' reaction to Ralph's suggestion reveals their loyalty to Jack and their willingness to follow his lead. It also highlights the growing division and power struggle within the group, as some boys are starting to prioritize savagery and hunting over civilization and order.
it was in a very bad conditions as jack had created his own tribe and was trying to sabotage ralphs tribe