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A shell of mass m is fired from a cannon at angle θ  to the horizontal with a velocity V. The shell at the highest point breaks into two fragments having masses in the ratio 2 : 3. The lighter fragment has a velocity zero immediately after explosion and falls vertically downward. the velocity of the other fragment just after explosion is

a
5Vcosθ
b
3Vcosθ
c
35Vcosθ
d
53Vcosθ

detailed solution

Correct option is D

5mυcosθ i→=0+3mV¯21V¯2=53VcosθiV2=53Vcosθ

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