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saveliy_v [14]
3 years ago
11

Jen pushed a box for a distance of 80m with 20 N of force. How much work did she do?

Physics
1 answer:
Drupady [299]3 years ago
8 0
The answer is 1,600 J.

A work (W) can be expressed as a product of a force (F) and a distance (d):
W = F · d<span>

We have:
W = ?
F = 20 N = 20 kg*m/s</span>²
d = 80 m
_____
W = 20 kg*m/s² * 80 m
W = 20 * 80 kg*m/s² * m
W = 1600 kg*m²/s²
W = 1600 J
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The velocity is 31.25 m/s and direction is toward west.

Explanation:

Given that,

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A uniform rod of length 0.8 m and mass 1.4 kg, has two point masses at each end. The point mass on the left end has a mass 1.2 k
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