Question

0 ENGI 200 Pounds Beauty-You T e c * xCGet Homework Help With Cheg x+ × W List of Running Man episodes p × A Block Of Mass 10 Kg Moves Quiz: Pre-Post 3-25 С 0 https://canvas.ou.edu/courses/109694/quizzes/138601/take 0 words Account D | Question 4 1 pts Courses You pick up a textbook, with a mass of 0.5 kg. You lift the book off your desk a distance of 0.5 m, carry it 5 m horizontally, and then place it on the floor. The top of your desk is 1 m above the floor Calendar The total change in gravitational potential energy of the book and Earth is Inbox 4.9 J 4.9 245J Help -2.45 J 7.35J 22.05J -22.05 ndows Ink Works Type here to search 40 AM 3/27/2019

Answer 1

Gravitational potential energy is given by:

PE = m*g*h

Change in potential energy will be given by:

dPE = PEf - PEi

dPE = m*g*hf - m*g*hi

hi = Initial height = 1 m

hf = final height = 0 m

m = mass of book = 0.5 kg

g = 9.80 m/sec^2

So,

dPE = 0.5*9.80*0 - 0.5*9.80*1

dPE = -4.9 J

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