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Sindrei [870]
3 years ago
8

When a forklift raises an object, is it doing positive or negative work on the object? Which type of work is the

Physics
1 answer:
saul85 [17]3 years ago
6 0
The answer:

-> When the forklift raises an object, it is doing positive work. This is because electrical energy is converted in to kinetic energy that is required for the forklift to raise the object.

-> However the resultant force of the object reacts on to the forklift, causing force of drag. This slightly weighs the forklift downwards due to how much mass the object weighs.
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12.8 Watts

Explanation:

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Calculate the work against gravity required to build the right circular cone of height 4 m and base of radius 1.2 m out of a lig
Nana76 [90]

Answer:

Work done = 35467.278 J

Explanation:

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Height of the cone = 4m

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Acceleration due to gravity, g = 9.8 m/s²

Now,

The total mass of the cone (m) = Density of the cone × volume of the cone

Volume of the cone = \frac{1}{3}\pi r^2 h

thus,

volume of the cone = \frac{1}{3}\pi 1.2^2\times 4 = 6.03 m³

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thus,

center of mass lies at,  h' = \frac{1}{4}\times4=1m

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W = mgh'

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