Momentum
m = mass (kg) i= mi
= velocity (ms)
p = momentum (Kgms) momentum is conserved Prefore =
Patter
example
-B stick together
S >
-
I
AFTER
-
Ms = 55
kg MB =
70 kg P+= 1000 kyms" left
Vs = 20 mst Vi = 30 mst P+= my
Ps = 55 .
20 = 120RPB >
-
= 70 30 =
.
2100kymst 1000 =
55 + 79v
Prot = 2100 -
1100 = 1000 kgms" left v = & ms" left
Impulse
Impulse = Fat =
Ap [Ns"]
·
is the change in momentum
F
(N) impulse : area under the curve of graph F us At
At (s)
m = mass (kg) i= mi
= velocity (ms)
p = momentum (Kgms) momentum is conserved Prefore =
Patter
example
-B stick together
S >
-
I
AFTER
-
Ms = 55
kg MB =
70 kg P+= 1000 kyms" left
Vs = 20 mst Vi = 30 mst P+= my
Ps = 55 .
20 = 120RPB >
-
= 70 30 =
.
2100kymst 1000 =
55 + 79v
Prot = 2100 -
1100 = 1000 kgms" left v = & ms" left
Impulse
Impulse = Fat =
Ap [Ns"]
·
is the change in momentum
F
(N) impulse : area under the curve of graph F us At
At (s)
