Answer:
work done by the force, W = -147.97 J
Given:
displacement of the box, s = 4.73 m
angle between force and displacement, [tex]\theta = 142^{\circ}[/tex]
Force, F = 39.7 N
Solution:
Work done by the force can be expressed as the dot product of Force, F and displacement 's' is given by:
W = Fscos[tex]\theta[/tex]
W = 39.7[tex]\times 4.73\times cos142^{\circ}[/tex]
W = -147.97 J
where negative sign indicates that work is done on the block
