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

A. 1 m
B. 2 m
C. 10 m
D. 100 m

Question

If you perform 10 joules of work lifting a 10-N box from the floor to a shelf, how high is the shelf?

A. 1 m
B. 2 m
C. 10 m 
D. 100 m

hartnn · Answer

Joule = newton * Meter 
10 = 10* (???)

anonymous · Answer

I have no clue. I don't understand how to even begin doing this problem.

anonymous · Answer

@jim_thompson5910 
Any way you could help me here?

jim_thompson5910 · Answer

Work = Force * Displacement

jim_thompson5910 · Answer

W = F*d

10 = 10*d

solve for d

anonymous · Answer

So D is 1?

unklerhaukus · Answer

The work done $W$ in joules against gravity, equals the weight force $F$in newtons time the vertical displacement $y$  in meters (lifting something up takes positive work) 
$$W=Fy$$

jim_thompson5910 · Answer

correct, displacement is 1 meter

jim_thompson5910 · Answer

since d = 1

anonymous · Answer

Okay. 
Thank you so much. (:

jim_thompson5910 · Answer

yw