Question

Figure shows the top view of two horizontal forces pulling a box along the floor. The work done by each force to displace the box 70 cm along the broken line is ​

Answer 1

Answer:

81.2 J

Explanation:

In each case take the component oc the force in the direction of the displacement:

$(85 \cos {30}^{0} n )(0.70m) = 51.5j \\ (60 {cos} {45}^{0} n)(0.7m) = 29.7j$

Work is a scalar, so add the work done by each force to give

$51.6j + 20.7j = 81.2j$

Final Answer:

$81.2j$

Answer 2

Explanation:

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