Answer:
See the answers below.
Explanation:
In order to solve this problem we must remember that work in physics is defined as the product of force by distance.
For the pushing force
[tex]W_{1}=F*d\\W_{1}=115*15\\W_{1}=1725[J][/tex]
For the lifting force
We must determine the weight, in this way multiplying the mass by the gravitational acceleration we determine the weight.
[tex]W_{2}=m*g*d\\W_{2}=20*9.81*10\\W_{2}=1962[J][/tex]
We can see that more work has to be done to lift the mass of 20 [kg] than to push the load.
