A1.70-m tall person lifts a 2.50-kg book from the ground so it is 2.40 m above the ground. part awhat is the potential energy of the book relative to the ground? express your answer to three significant figures and include the appropriate units. part bwhat is the potential energy of the book relative to the top of the person's head? express your answer to three significant figures and include the appropriate units. part chow is the work done by the person related to the answers in parts a and b? 1. the work done by the person in lifting the book from the ground to the final height is the same as the answer to part a2. the work done by the person in lifting the book from the ground to the final height is the same as the answer to part b