Abook weighing 1.0 newton is lifted 2 meters. how much work was done ?

The the work that is done here is   

we were given;

Then, if we substitute

Therefore, the quality of work is

Learn more at: link

Work = Force x distance

        = 1 N   x   2 meters

        = 2 N·meters

        = 2 Joules

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm