1. A care package that is released from a helicopter for flood victims initially has 2500 J of gravitational potential energy and no kinetic energy. The package is simply dropped not pushed. At a lower height the object has 725 J of potential energy and 1135 of J of kinetic energy. Is the energy conserved? How can you tell And is it possible that thermal energy was produced by this motion? Why do you think this occurred? Question2 . You apply a constant motion 15 N while pushing a box through a distance of 2.5 m across the floor. How much in work in joules did you do? If the box starting from rest only gains 23 J of kinetic energy how much of the work that you did was converted into thermal energy through friction? Question 3. A father and his son are skiing. The father has a mass of four times his the sons mass. Both are skiing from the top of the same hill. How does the potential energy of the father compare to that of the sons at the top of the hill? Explain. Once the father and son ski down the hill how do their speed at the bottom of the hill on the flat part compare? Neglect friction How does the kinetic energy of the father Conroe to the kinetic energy of the son once the two ready the bottom of the hill? Hello there are several Questions