Answer:
22) 5.6 Kg.m/s
23) 0.067 Kg
24) 1.16 m/s
Explanation:
Momentum is found by multiplying mass and velocity
P=mv where P is momentum, m is mass of object and v is the velocity
22
Given
Mass, m=2 Kg
Rate, v=2.8 m/s
Relationship
P=mv
Solution
P=mv=2*2.8=5.6 Kg.m/s
23
Given
Momentum, p=0.1 Kg.m/s
Rate, v=1.5 m/s
Relationship
P=mv and making m the subject then
[tex]m=\frac {P}{v}[/tex]
Solution
[tex]m=\frac {0.1 Kgm.s}{1.5 m/s}\approx 0.067 Kg[/tex]
24
Given
Momentum, [tex]p=4.9\times 10^{8} Kg.m/s[/tex]
Mass, [tex]m=4.23\times10^{8} Kg[/tex]
Relationship
P=mv and making v the subject then
[tex]v=\frac {P}{m}[/tex]
Solution
[tex]m=\frac {4.9\times 10^{8} Kgm.s}{4.23\times10^{8} }\approx 1.16 m/s[/tex]
