A child applies a force vecF parallel to the x-axis to a block moving on a horizontal surface. As the child controls the speed of the block, the x-component of the force varies with the x-coordinate of the block as shown in figure. Then The work done by the force F when the block moves from x=4 to x=6m is

A child applies a force vecF parallel to the x-axis to a block moving

1.	A child applies a force vecF parallel to the x-axis to a block moving on a horizontal surface. As the child controls the speed of the block, the x-component of the force varies with the x-coordinate of the block as shown in figure. Then The work done by the force F when the block moves from x=4 to x=6m is
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