10.16 A set of bookshelves rests on a hard floor surface onfour legs, each having a cross-sectional dimension of3.0 x 4.1 cm in contact with the floor. The total mass ofthe shelves plus the books stacked on them is 262 kg. Cal-culate the pressure in pascals exerted by the shelf footingson the surface.6PFB
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10.16 A set of bookshelves rests on a hard floor surface on four legs, each having a cross-sectional dimension of 3.0 x 4.1 cm in contact with the floor. The total mass of the shelves plus the books stacked on them is 262 kg. Cal- culate the pressure in pascals exerted by the shelf footings on the surface. 6PFB
Force exerted by shelves is calculated by the formula,
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F m x a - (262 kg)(9.8 m/s2) - 2.57x 10' kg.m/s2
Dimension of the surface in contact with floor is 3.0×4.1 cm. number of legs of shelves that are ...
![A = Nx (D
4 x 3.0 cm x 4.1 cm = 49.2 cm2
[Im2 = 10 cm2]
4.92 x 10
m2](https://prod-qna-question-images.s3.amazonaws.com/qna-images/answer/ec858007-2d1e-4bf6-a2c3-6011aa79339f/42a20485-0f74-4239-ad57-c60be0dd44a5/s1pw5ah.png)
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A = Nx (D 4 x 3.0 cm x 4.1 cm = 49.2 cm2 [Im2 = 10 cm2] 4.92 x 10 m2
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