Question

Two particles A and B of mass 10 and 20
respectively fall vertically. At a given time, the speed
of particle A is 12 m/s and that of Bis 15 m/s Find
the total linear momentum of the system of the twe
particles​

Answer 1

we know that p =mv then we put all the value in given formula then we obtained p( linear momentum)= 420kg m / second

Answer 2

Answer:

Mass of A = 10 g =  = 0.01 kg

Velocity of A = 12 m/s

Mass of B = 20 g =  = 0.02 kg

Velocity of B = 15 m/s

We know that :

Momentum of A = 0.01 × 12 = 0.12 kgm/s

Momentum of B = 0.02 × 15 = 0.3 kgm/s

Total Momentum = 0.12 kgm/s + 0.3 kgm/s

=》 0.42 kgm/s

Step-by-step explanation: