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matrenka [14]
3 years ago
9

A forklift raises a box weighing 475N from the floor to a height of 18m in 12 seconds. What power is produced by the forklift mo

tor in watts
Physics
1 answer:
Temka [501]3 years ago
6 0

The power produced is 712.5 W

Explanation:

First of all, we start by finding the work done by the forklift.

The work done on an object pushed in the same direction as the force is given by:

W=Fd

where

F is the magnitude of the force

d is the displacement of the object

In this problem,

F = 475 N is the force applied to raise the box

d = 18 m is the displacement

Substituting,

W=(475)(18)=8550 J

Now we can calculate the power, which is the ratio between the work done and the time taken:

P=\frac{W}{t}

Here we have,

W = 8550 J

t = 12 s

Substituting,

P=\frac{8550}{12}=712.5 W

Learn more about power here:

brainly.com/question/7956557

#LearnwithBrainly

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A classroom is about 3 meters high, 20 meters wide and 30 meters long. If the density of air is 1.29 kg/m3, what is the mass of
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Answer:

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Explanation:

given:

A classroom is about 3 meters high, 20 meters wide and 30 meters long.

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density = mass / volume

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plugin values into the formula

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                             1800 m³

mass =  1.29 kg/m³  ( 1800 m³ )

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therefore,

the mass of the air in the classroom = 2322 kg

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