# Instantaneous Power (Mastering Physics)

1. Oct 1, 2008

### ren0x

1. The problem statement, all variables and given/known data

Let us now consider several questions that include numeric data.

A sled is being pulled along a horizontal surface by a horizontal force F of magnitude 600 N. Starting from rest, the sled speeds up with acceleration 0.08 m/s2 for 1 minute.

Find the instantaneous power P created by force F at t=10s.

2. Relevant equations

Pavg = $$\frac{\Delta W}{\Delta t}$$
P = $$\frac{dW}{dt}$$

3. The attempt at a solution
I have solved for velocity after 10s.

v = 0.8 m/s

I'm stuck at where to go from here.

2. Oct 1, 2008

### Mattowander

Do not forget that Power can also be expressed as P = Fv

3. Oct 1, 2008

### ren0x

If I'm not mistaken, that is the formula for Pavg. I am trying to solve for the instantaneous power, unless you know something I don't.

4. Oct 1, 2008