Question

If pu perform 10 joules of work lifting a 10-N box from the floor to the shelf how high is the shelf

Answer 1

Using newton law 
d=W/F
d=10/10
d=1m
so the shelf is 1m high.

Answer 2

The work can be calculated by multiplying the force by the amount of movement of an object.

Mathematically it can be represented as:

[tex]W=F\times d[\tex]

F represents force,

W represents work

d represents distance

Here,

W is given as 10 J

d is the height of shell

F is given as 10 N

So,

by putting all the values in the equation, we get:

10=10\times d

So, d=1 m

so the height of shell will be 1 m.