Answer:
14 km
Explanation:
He goes south 17km then goes back 3km which leaves 14km left.
PE = 1/2 . k . x^2 = kg . m^2 / s^2
Forget the 1/2 , it has no units
<span>k = kg . m^2 / s^2 / m^2 = kg / s^2
Therefore, the unit of the spring constant k would be </span><span>kg / s^2.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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I think option C is correct..hope it helps
