A boy weighs 480 N walks down a staircase which is 4.3 m below his start point. Calculate the change in boy's potential energySelect oneA 2064JB. +2064JC. +206.4JD. 2064J

A boy weighs 480 N walks down a staircase which is 4.3 m below his sta

1.	A boy weighs 480 N walks down a staircase which is 4.3 m below his start point. Calculate the change in boy's potential energySelect oneA 2064JB. +2064JC. +206.4JD. 2064J
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A boy weighs 480 N walks down a staircase which is 4.3 m below his start point. Calculate the change in boy's potential energySelect oneA 2064JB. +2064JC. +206.4JD. 2064J​

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A boy weighs 480 N walks down a staircase which is 4.3 m below his start point. Calculate the change in boy's potential energySelect oneA 2064JB. +2064JC. +206.4JD. 2064J