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A 20kg box containing books was lifted from the floor by a student to a 1 meter high table. How much work is done by the student in lifting the box?

Sagot :

Solution:

Generally, the solution is supposed to be as follows:

W = Fd

where W is the work done, F is the force exerted, and d is the distance. However, since force is not present, let us use an alternate formula, which is:

W = mgh

where m is the mass of the object, g is the gravity constant (calculated to 9.81 m/s²), and h is the height exerted.

Since this formula is more applicable, let us use this.

Now, substitute what is given:

m = 20 kg
g = 9.81 m/s²
h = 1 m

W = mgh
W = (20)(9.81)(1)

Solve the following.

W = (196.2)(1)


W = 196.2 J

Hope this helps. Not asking for Brainlest, asking for a thank you.

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