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Q.

Three particles A, B and C are projected from the top of a tower with the same speed. A is thrown straight upwards, B straight down and C horizontally. They hit the ground with speeds νAνB and νC then which of the following is correct?

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a

v1=vB=vC

b

v1>v1>v1

c

vA=vB>vC

d

v1>l13=v0

answer is B.

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Detailed Solution

Change in potential energy for all three particles is same. Hence, change in kinetic energy will also be same.

or     vA=vB=vC

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