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zzz [600]
3 years ago
13

Can anyone answer this for my friend course I am not sure of what I did I don’t take physics but I did it

Physics
1 answer:
kogti [31]3 years ago
3 0

Answer:

the total travled is 2.75

Explanation:

because if you divide 110 by 40 you get 2.75

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Answer:

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Explanation:

The question says "A 75.0-kg painter climbs a 2.75-m ladder that is leaning against a vertical wall. The ladder makes an angle of 30.0 ° with the wall. How much work (in Joules) does gravity do on the painter? "

Mass of a painter, m = 75 kg

He climbs 2.75-m ladder that is leaning against a vertical wall.

The ladder makes an angle of 30 degrees with the wall.

We need to find the work done by the gravity on the painter.

The angle between the weight of the painter and the displacement is :

θ = 180 - 30

= 150°

The work done by the gravity is given by :

W=Fd\cos\theta\\\\=75\times 10\times 2.75\times \cos30\\\\=1786.17\ J

Hence, the required work done is 1786.17 J.

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