- #1

lguer47860

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## Homework Statement

a 40.0 kg child is in a swing hat is attached to ropes 2.00 m long. find the gravitational potential energy associated with the child relative to the child's lowest position under the following conditions:

a. when the ropes are horizontal

b. when the ropes make a 30.0 degree angle with the vertical

c. at the bottom of the circular arc

## Homework Equations

so i used the gravitational potential energy formula which is mass x free-fall acceleration x height

i used 9.81 as the acceleration and that i thought wait if for a it is horizontal

## The Attempt at a Solution

for my answer i kept on getting 1200 but in the textbook part a is 785 J for part b it is 105 J and for part c it is 0.00 J. i figured out Part A but i cannot figure out part b or c please help i need someone to just help walk me through it since i am stuck i am a high school student doing physics one honors