1) The weight of the object is 1333 N
2) The mass of the object is 136 kg
Explanation:
1)
The work done when lifting an object is equal to the change in gravitational potential energy of the object:
[tex]W=Fd[/tex]
where
F is the weight of the object
d is the distance through which the object has been moved
In this problem, we know that
W = 3200 J is the work done
d = 2.40 m is the distance through which the object has been lifted
Solving for F, we find the weight of the object:
[tex]F=\frac{W}{d}=\frac{3200}{2.40}=1333 N[/tex]
2)
The weight of an object is given by
[tex]F=mg[/tex]
where
F is the weight
m is the mass of the object
g is the acceleration of gravity
In this problem, we know that
F = 1333 N is the weight of the container
[tex]g=9.8 m/s^2[/tex] is the acceleration of gravity
Solving for m, we find the mass of the container:
[tex]m=\frac{F}{g}=\frac{1333}{9.8}=136.0 kg[/tex]
Learn more about work:
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