Unit 4 - Linear Momentum (add review)

Impulse (N ⋅ s) // Momentum (kg ⋅ m/s)

Impulse = Δ Momentum

another way to write impulse equals change in momentum

you can always use the 2nd equation if momentum is conserved

probably gotta derive the bottom

try to think with no magnitudes here, vector is conserved in explosion

cm (center of mass)

NOTES:

• total force (impulse / sum of the forces / integral of force graph) is the change in momentum

• impulse is the area under the force graph (integral of force)

EXAMPLES:

• concave up - linear

• tricky, momentum is conserved, use vector addition, y(sum) is still 0, and x(sum) is equal to original