Momentum and Impulse
Before
MOMENTUM
p = –3 kg.m/s
Mass (kg)
Momentum
(kg·m/s)
p = mv
80 N force
applied for
0.1 seconds
Velocity (m/s)
IMPULSE
Force (N)
Time (s)
Impulse = +8 N.s
After
0.1 kg
Initial
Final
velocity (m/s) velocity (m/s)
Mass (kg)
50 m/s
p = +5 kg.m/s
Ft = mv2 – mv1
Impulse
(N·s or kg·m/s)
0.1 kg
– 30 m/s
Change in
momentum
+5
kg .m
s
–(–3)
kg .m
s
Impulse
=
+8 N.s