The child pushed the baby walker 2.8 m across a horizontal floor. The work done by the child was 35 J. Calculate the horizontal force the child applied to the baby walker.

The relationship between work done (W), force (F), and distance (s) is given by the equation W = Fs. To find the force, we need to rearrange this equation to F = W / s. Given values are: W = 35 J s = 2.8 m Substituting these into the rearranged equation: F = 35 / 2.8 F = 12.5 N The horizontal force applied was 12.5 N.