Question

A book weighing 1.7 N is lifted 3 meters. How much work was done?

Answer 1

the answer is 5.1W

Step-by-step explanation:

work done=mgh

weight =mg=1.7N

1.7=10m

divide both sides by 10

mass=1.7/10=0.17Kg

since weight is mg and height is 3m then mass isn't really needed

so,

W=mgh

W=1.7×3

W=5.1W