# Impulse (Delta speed)

vCalc Reviewed
J =
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ID
vCalc.Impulse (Delta speed)
UUID
c83e83ae-2f1b-11e3-8029-bc764e049c3d

This equation computes the impulse due to change in speed (so change in velocity neglecting any change in direction)

## INPUTS

• m - mass
• v_i -  initial velocity
• v_f - final velocity

## NOTES

Impulse (J) is the product of force and time.  Impulse is also the change in momentum, where momentum is mass x velocity.

J = m*deltat = F_"average" * delta t