# Accelerating force due to ejection

1. Sep 8, 2008

### Jowin

A festival rocket is ejecting 0.05 kg of gases per second at a velocity 400m/s The accelerating force on the is? The formula given in the book is F=dp/dt What does the formula mean

2. Sep 8, 2008

### Hootenanny

Staff Emeritus
The formula is known as Newton's second law and states that the net force acting on a body is equal to the rate of change of the [linear] momentum of the body.

Last edited: Sep 8, 2008
3. Sep 8, 2008

### tiny-tim

Welcome to PF!

Hi Jowin! Welcome to PF!