How many joules of work are done if you carry a box that weights 34 newtons up a ladder for a distance of 2 meters?

Workdone(W) = Force(Newton[N]) x displacement(metres([m])

Weight of box = mg = 34Newton

mass of weight = 34/9.81 = 3.4658m

Now Workdone = Force x displacement

but Force = mg

Hence, Workdone = mg x displacement

             Workdone = 3.4658 x 9.81  x 2 =  68Nm = 68Joules(J)

Explanation:

Whenever a load is moved up an height, gravity always acts against it. This accounts for the need to know the actual mass of the box.

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nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.