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pav-90 [236]
2 years ago
7

A total of 1,033 J of work is needed to lift a body of unknown mass through a height of 64 m. What is its mass? Round your inter

mediate step to one decimal place and the final answer to the nearest integer.
Physics
1 answer:
jasenka [17]2 years ago
4 0

Answer:

m = 1.64 kg

Explanation:

Given that,

The work done to lift a body, W = 1,033 J

Height, h = 64 m

We need to find its mass. The work done in lifting the mass is given by :

W=mgh\\\\m=\dfrac{W}{gh}\\\\m=\dfrac{1033 }{9.8\times 64}\\\\m=1.64\ kg

Hence, the mass of the body is 1.64 kg.

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andrey2020 [161]

Answer:

D_{s} ≈ 2.1 R

Explanation:

The moment of inertia of the bodies can be calculated by the equation

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For bodies with symmetry this tabulated, the moment of inertia of the center of mass

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The parallel axes theorem allows us to calculate the moment of inertia with respect to different axes, without knowing the moment of inertia of the center of mass

    I = I_{cm} + M D²

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The sphere

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    D_{s}² = R² (14/3 - 2/5)

    D_{s} = √ (R² (64/15)

    D_{s} = 2,066 R

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A stone is thrown with an initial speed of 12 m/s at an angle of 30o above the horizontal from the top edge of a cliff. If it ta
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Answer:

d=58m

Explanation:

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Answer:

8 seconds

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Answer:

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