Question

Please help !! ASAP

Answer 1

22) 5.6 Kg.m/s

23) 0.067 Kg

24) 1.16 m/s

Step-by-step 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

`m=\frac {P}{v}`

Solution

`m=\frac {0.1 Kgm.s}{1.5 m/s}\approx 0.067 Kg`

24

Given

Momentum,
`p=4.9* 10^(8) Kg.m/s`

Mass,
`m=4.23*10^(8) Kg`

Relationship

P=mv and making v the subject then

`v=\frac {P}{m}`

Solution

`m=\frac {4.9* 10^(8)  Kgm.s}{4.23*10^(8) }\approx 1.16 m/s`