v m/sA ball of mass 0.2 kg rests on avertical post of height 5 m. Abullet ofof mass 0.01 kg,travelling with a velocity v m/sin a horizontal direction, hitsthe centre of the ball. After thecollision, the ball and bullettravel independently. The ball hits the ground at a distance of20 m and the bullet at a distance of 100 m from the foot of thepost. The initial velocity v of the bullet is(2011)(a) 250 m/s (b) 250√2 m/s (c) 400 m/s (d) 500 m/s0 20100

We are aware that a 0.2 kilogramme ball rests on a 5 m tall vertical pole. a bullet with a…

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