Asked by Tristan

A child pushes a toy box 5.0 m along the floor with a force of 7.0 N directed downward
at an angle of 30.0° 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?

Answers

Answered by Tristan
please, i need the answer ASAP
Answered by R_scott
the force in the direction of motion is ... 7.0 N * cos(30º)

(a) w = 7.0 N * cos(30º) * 5.0 m

(b) less ... pulling upward reduces the frictional force
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