Afemale bear leaves her bear cubs in their den to go out in search of food. she travels one mile in 30 minutes, heading east. she travels quickly at first, but then she becomes tired and begins moving more slowly. she finds no food, so she then heads north for another 10 minutes. she finds a river so she is able to catch a few fish for her bear cubs. she then turns around and heads back toward her den. she travels southwest and returns home to feed her cubs. question: identify and describe all points of acceleration in the scenario about the bear and her cubs. make sure to explain why each example is a point of acceleration.