Use the worked example above to help you solve this problem. A

53.0kg

skier is at the top of a slope, as shown in the figure. At the initial point (A), she is

9.0m

vertically above point (B).\ (a) Setting the zero level for gravitational potential energy at B, find the gravitational potential energy of this system when the skier is at (A) and then at (B). Finally, find the change in potential energy of the skier-Earth system as the skier goes from point (A) to point (B).\

PE_(i)=\ PE_(f)=()/(_(/))\ PE=,J\ ,J

\ (b) Repeat this problem with the zero-level at point (A).\ \\\\table[[

PE_(i)=

,],[

PE_(f)=

,],[

/_(/)PE=

,

J

the worked example above to help you solve this problem. A 53.0kg skier is at the top of a slope, as wn in the figure. At the initial point (A), she is 9.0m vertically above point (B). (a) Setting the zero level for gravitational potential energy at (B) find the gravitational potential energy of this system when the skier is at (A) and then at (B). Finally, find the change in potential energy of the skier-Earth system as the skier goes from point (A) to point (B). PEi=PEf=PE=JJJ (b) Repeat this problem with the zero-level at point (A). PEi=PEf=PE=JJ (c) Repeat again, with the zero level 2.00m higher than point (B). PEi=Yourresponsediffersfromthecorrectanswerby-morethan10%.Doublecheckyourcalculations.JPEf=Theresponseyousubmittedhasthewrongsign.JxPE=Yourresponsediffersfromthecorrectanswerbymorethan10%.Doublecheckyourcalculations.J