the precious problem is written in pencil above. please show all your work, than

Question

the precious problem is written in pencil above. please show all your work, thank you. for parts A and B

n6 wth an inifia kin on iniae Kineic mass o.0s ka is thrown straige eic Enerf 5.0 Jous up p oth on inifia kineic of 5.0 Jouls This is a follow-up to the previous problem. (a) How fast is the ball traveling when it reaches a height of 3.0 m? Please solve this using the energy approach. Do not use the equations of motion approach. (b) What is the maximum height to which the ball will rise? Please solve this using the energy approach. Do not use the equations of motion approach.

Explanation / Answer

initial kinetic energy K1 = 5 J

initial potential energy U1 = 0

at h = 3m

final potential energy U2 = m*g*h

final kinetic energy = K2 = 0.5*m*v2^2

from energy conservation

U1 + K1 = U2 + K2

5 + 0 = (0.05*9.8*3)+(0.5*0.05*v2^2)

v2 = 11.88 m/s

+++++++

(b)at maximum height PE = U2 = m*g*H

kietic energy = K2 = 0

U1 + K1 = U2 + K2

5 + 0 = (0.05*9.8*H)

H = 10.2 m

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