Question

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How much work is accomplished when a force of 250 N pushes a box across the floor for a distance of 50 meters?

A. 12,500 J

B. 5 N

C. 12,500 N

D. 5 J

Answer 1

\[Work = Force*distance*\angle~betwn~applied~force~and~direction~of~motion\]

\[W = FdCos(\phi)\]

Answer 2

12,500? Idk how to figure out J or N either. I think J? because its power, and power is how much work is accomplish, I think?

Answer 3

Idk what N is tho

Answer 4

@Photon336

Answer 5

You have the right formula. remember we're talking about work the angle is 0 btw. you already know the applied force F and the distance in meters d.

Answer 6

all you have to do is plug it into the formula.

Answer 7

Hm.. Ok this is hard DX Sorry, my brain is a little below average, at least in science and math. The applied force is 250 N and the distance is 50 meters, and up there you put * so my mind put it as multiply, if not that idk what we're doing.

Answer 8

yeah don't worry. just tell me where you are confused

Answer 9

so do you know the definition of what work is?

Answer 10

I thought that we multiplied 250 and 50, so that equals 12,500. But how do I know if its J or N? Am I even doing it right?

Answer 11

yeah that's right but also make sure you keep track of your units.

Answer 12

remember

in

\[Work~W = Force*Distance = Newtons*Meters \]

Answer 13

so your units will be Newtons~meters which equal work

Answer 14

AKA Joules

Answer 15

Oh
Does * equal multiplication?

Answer 16

yep

Answer 17

Oh okay

Answer 18

this means that we are applying a force over a distance

Answer 19

that's the definition of work

Answer 20

Why is It J (Joules?) and not N (Newtons?)

Answer 21

Joules = Newtons*meters

Answer 22

OOHH!! That makes so much more sense.

Answer 23

I understand this now. Thank you so much!

Answer 24

no problem