desh bhagat

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a bullet of mass 7g is fired into a block of wood weight 7kg the block is free to move after the impact , the velocity of the bullet and block is 17 cm/sec. what is the initial velocity of the bullet

  • desh bhagat -

    Conservation of momentum applies

    massbullet*velocitybullet=(massbullet+massblock)Velocityfinal

    solve for velocity of bullet

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