A particle is projected at an angle of 45°. After 1 second, it breaks into two equal parts. One part stops
and other part attains the height of 20m after the breaking of the particle. Find the velocity of projection
(g=10m/s2)
1) 20 m/s
2) 2012m/s 3) 10/2m/s
4) 15 m/s
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