A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5 Newton.
Determine how much work does the string do on the boy if the boy stands still?
Find how much work does the string do on the boy if the boy walks a horizontal distance of 11 meter away from the kite?
Find how much work does the string do on the boy if the boy walks a horizontal distance of 11 meter toward the kite?