## anonymous one year ago The man pictured (I will draw!) is standing while holding up boxes. which of the following statements is true? A. The man is doing work because he is exerting force to hold the boxes up. B. The man is doing work because the boxes are about 1 m high. C. The man is not doing work because the boxes are not moving. D. The man is not doing work because he is not exerting a force.

1. anonymous

|dw:1433089378391:dw|

2. anonymous

haha bad drawing :P sorry but basically a man holding two boxes!!

3. Michele_Laino

Hint: If there is no displacement, then the the work made by the man, is: $W = Fs = F \times 0 = ...$

4. anonymous

ohh so 0? he is not doing work?

5. Michele_Laino

correct!

6. Michele_Laino

so, what is the right option?

7. anonymous

ooh yay!! would it be choice D then?

8. Michele_Laino

ok!

9. anonymous

yay! that is the correct option? :O

10. Michele_Laino

please wait: It is option C

11. anonymous

ohhh okay.. darn :( how come it is C?

12. Michele_Laino

because the boxes are at rest, so the displacement over time is zero

13. anonymous

ohh okay!! thank you!!

14. Michele_Laino

:)