Question

two particles A and B of mass 10 g and 20 g respectively fall vertically. At a given time, the speed of particle A is 12m/s and that of B is 15m/s. find the total linear momentum of the system of the two particles?

Answer 1

mass of particle A = 10 g= 0.010 kg

Velocity, v = 12 m/s

momentum = mv

= 0.010 kg X 12 m/s

= 0.12 kg m/s

mass of particle B = 20 g= 0.020 kg

Velocity, v = 15 m/s

momentum = mv

= 0.020 kg X 15 m/s

= 0.3 kg m/s

Total momentum = 0.12 kg m/s + 0.3 kg m/s

= 0.42 kg m/s downwards

Answer 2

Answer:

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Explanation:

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