1.

Two objects of masses m1 and m2 fallfrom the heights h1 and h2 respectively.Th e ratio of the magnitude of theirmomenta when they hit the ground is

Answer»

By Newton 3rd law of MOTION, v^2 = u^2 +2as
So, V1 ^2 = 0 + 2gh1 .
therefore v1 =√2gh1
Similarly v2 =√2gh2.
so the ratio of momenta = m1v1/m2v2
=(M1 × √2gh1)/(M2 × √2gh2) =(m1√h1)/(m2√h2).


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