Aboy does 465 j of work pulling an empty wagon along level ground with a force of 111 n [31o below the horizontal]. a frictional force of 155 n opposes the motion and is actually slowing the wagon down from an initial high velocity. the distance the wagon travels is

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

answer: 31, 5556. 952 seconds

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