An expert from another site web answered me. He said 30. When I put this, the system said it's wrong. So I would like to give to a real expert here to give me the best answer

Exercice6. We consider an object morning along. path . [# 13-2 13. p ( th . = ( 8 t , uhact ), sin ( IT ) ) ) a force described by the nect on field F ( x 4 2 ) . = ( x - 4 2 , x 2, 6 ) in applied to this dject calculate the total work of the lance. on this object ip . f f do P