Physics, asked by supriyasingh964833, 1 month ago

answer above correctly

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Answered by itsme21bb

0

Answer:

-plz mark brainliest

Explanation:

m1 = 10g = 0.01kg

v1 = 400m/s

m2 = (10 + 990)g = 1kg

v2 = ?

applying conservation of momentum---

m1v1 = m2v2

0.01 x 400 = 1 x v2

=> v2 = 4m/s

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