7. [-/3 Points] A child with a weight of 250 N swings on a playground swing attached to 2.00 m long chains. What is the
Posted: Thu Jul 07, 2022 2:10 pm
7. [-/3 Points] A child with a weight of 250 N swings on a playground swing attached to 2.00 m long chains. What is the gravitational potential energy (in J) of the child-earth system relative to the child's lowest position at the following times? (a) when the chains are horizontal J DETAILS OSCOLPHYS2016 7.3.WA.025. (b) when the chains make an angle of 30.0° with respect to the vertical J (c) when the child is at his lowest position J Additional Materials Reading MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER