# Integral of momentum

1. Jan 26, 2009

### Dominique

Hi,

QUESTION 1
??=dF/dt
F =ma=dp/dt (force)
p =mv=d?/dt (linear momentum)
? =mx

A) Is there a quantity defined as the mass times the position or as the integral over time or the the linear momentum?
B) Is there a quantity defined as the derivative wr to time of the force?

QUESTION 2
?? = intergal over time of power
P =(mv^2)/2t (power)
K =(mv^2)/2 (kinetic energy)
? = dK/dt

A) Is there a quantity defined as the derivative over time of energy?
B) Is there a quantity defined as the integral over time or the power?

Thank you very much for your help!