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2 years ago

Kendra lifts a box using a force of 80 N. She lifts the box a height of 0.5

Physics

1 answer:

Fynjy0 [20]2 years ago

6 0

The work she on the box will be 40 J. Here the displacement due to the force is height.

Work done is defined as the product of applied force and the distance through which the body is displaced on which the force is applied.

Given data;

Force,F = 80 N

height, h = 0.5 m

Work,W = ? J

Here the displacement is height;

W = F × d

W = F × h

W = 80 N × 0.5 m

W = 40 Nm

W=40 J

Hence work she on the box will be 40 J.

To learn more about the work done refer to the link;

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Explanation:

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You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. The ray reflects from the mirror

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Answer:

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Explanation:

Given data

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solution

let us consider ray is strike at angle θ so after strike on surface ray strike to wall at angle 90 - θ

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