How Much Work Does a Crane Do to Lift Soil?

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    Grade 11 Phyics
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Homework Help Overview

The problem involves calculating the work done by a crane to lift a bucket of soil, focusing on the mass and weight of the materials involved. The subject area pertains to mechanics, specifically work and force calculations.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss how to calculate the weight of the soil and the bucket, with one participant attempting to derive the mass of the soil based on given density and volume. Questions arise regarding the units of measurement for weight and mass.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some guidance has been offered regarding the calculation of weight using mass and gravitational acceleration, but there is no explicit consensus on the next steps or clarity on unit specifications.

Contextual Notes

There appears to be confusion regarding the units of weight and mass, which may affect the calculations. The original poster has provided some values but has not fully clarified the context of these measurements.

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Homework Statement



A crane lifts a 2.25x10^3 bucket containing 1.15m^3 of soil (density = 2.00x10^3kg/m^3) to a height of 7.50 m. Calculate the work the crane performs.

Homework Equations


D=m/V
W=Fd


The Attempt at a Solution



F=2n25x10^3N
d=7.50m
D=2.00x10^3 kg/m^3
V=1.15m^3
W=?

alright so I've calculated the mass the object will have and i got 2.3 x 10^3kg
Now i was just wondering if anyone could help me on where to go from here?
 
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find the weight of the soil, add it on to the weight of the bucket and use your W=Fd equation.
 
how do i find the weight of the soil and the weight of the bucket?
 
weight=mass*g

g=acceleration due to gravity=9.81

you already know the weight of the bucket is 2.25*103 N.
 
Is it N or kg? You didnt specify and its very important
 
is what in N or kg? everything is there
 

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