Chapter Eight-Maiia Felcs Chapter E Problem 833 Find the initial kinetic energy,
ID: 1790208 • Letter: C
Question
Chapter Eight-Maiia Felcs Chapter E Problem 833 Find the initial kinetic energy,the Sinal kinetic energy, and the change in kinetic energy for the frst 200 m of fall Problem 8.33 ering Enter your answers numerically separated by commas. A 590 kg rock is dropped and allowed to all theely urse Hon abus Incorrect: Try Again; 5 attempts remaining urse Tot ext udy Area Part B Find the iniial kinetic enrgy, he final kniicenngy, and the change in kinetic energy for the second 2.00 of Enter your answers numerically separated by commas Kit Kr AK 107.8,215.6,107.8 Type hese to search DOLL 5 6 8 9Explanation / Answer
initial kinetic energy KEi = 0
initial potential energy Ui = m*g*h1
final potential energy Uf = m*g*h2
final kinetic energy KEf = ?
Wg = dK
-dU = dK
Ui - Uf = dK = KF - Ki
m*g*(h1-h2) = Kf - Ki
Kf = 5.9*9.8*2 = 115.64
change in kinetic energy dK = dU = 115.64 J
0 , 115,64 , 115,64
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part B
KEi = 115.64 J
-dU = dK
Ui - Uf = Kf - Ki
m*g*(hf-hf) = Kf - ki
5.9*9.8*2 = kf - 115.64
Kf = 231.28 J
115.64 , 231.28 , 115,64