physics Q...need answer..ty?

Question

A child pushes a toy box 4.0m along the fllor with a force of 6.00N directed downward at an angle of 37.0 degrees to the horizontal.
a. How much work does the child do?
b. Would you expect more or less work to be done if the child pulled upward at the same angle?

Answer 1

Work done = Fcos(theta) * s,
where s = distance travelled

i cant give you an answer on work done without illuatrations

i would say less work done when the child is pulling the toy upwards.

Comments on pearlsawme's ans:
basically the degree in both cases are diff. when the force is directed downwards. the angle is in the -ve y-axis, therefore you will need to add a further 180 degrees to the basic angle.

Answer 2

The work done in both cases is F s* cos a = 6 x 4 x cos 37 = 19.17 joules.