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3 years ago

6

At time t the resultant force on a particle, of mass 250kg is (300ti-400tj)N. Initially, the particle is at the origin and is mo

ving
with the velocity (2i-3j)m

−1

1 answer:

Harlamova29_29 [7]3 years ago

4 0

Answer:

i

Explanation:

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External diameter of the hemispherical shell, D = 500 mm

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So, internal radius, r = 230 mm

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Density of molten metal, ρ = $7.2 \ g/cm^3$

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So, the metallostatic thrust on the upper mold at the end of casting is :

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$F=\rho g A h$

$=7200 \times 9.81 \times 0.3324 \times 0.3$

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