# Homework Help: Power and Work

1. Nov 12, 2006

### soulja101

I cant get this question. ive tried everyway i could think but i still cant get it.

A force of 5.0N moves a 6.0kg object along a rough floor at 2.5m/s

11. How much work is done in 25s by the force.
12.what power is being developed.
13. what force of friction is acting on the object(magnitude only).

2. Nov 12, 2006

### Dorothy Weglend

What have you tried? Pick your best way. Let us see it.

3. Nov 12, 2006

### soulja101

I ve tried these formulas force*distance and m*g*h* they still dont work

4. Nov 12, 2006

### Dorothy Weglend

You are on the right track with Force * distance. More details would be nice. What, exactly, did you use for Force and distance? How did you get it?

5. Nov 13, 2006

### soulja101

wat i used

i used 5.0N as the force and i got stuck there becuase i couldnt find the distance.

6. Nov 13, 2006

### Dorothy Weglend

Your problem says that the speed is a constant 2.5 m/s. And then it asks how much work is done in 25 s...