Recent content by Student91

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    Tracking the Third Piece of an Exploding Ball

    Up !
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    Tracking the Third Piece of an Exploding Ball

    My Work : By Conservation of Momentum : Pi = Pf 0= mv1 + mv2 + mv3 Devid By 3m .. = v1 + v2 + v3 = d1/3t + d2/3t + d3/3t Devide By 3t .. d3 = -( d1 + d2 ) d3 = -( 40i + 20i - 60j ) d3 = -40i - 20i + 60j d3 = -60i + 60j So x= -60 and y = 60
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    Tracking the Third Piece of an Exploding Ball

    Is the answer going to be -60i+60j ?
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    Tracking the Third Piece of an Exploding Ball

    My Physics teacher told me it solved by F=ma ..
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    Tracking the Third Piece of an Exploding Ball

    A ball of mass m at rest at the coordinate origin exploded into three equal pieces. At a certain instant, one piece is on the x-axis at x=40cm, and another is at x=20cm, y=-60cm. where is the third piece at that instant I don't have an idea how to solve it I tried many time but I don't...
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    Find their velocities after the collision

    A ball of mass 0.198 kg has a velocity of 1.47 i m/s; a ball of mass 0.309 kg has a velocity of -0.401 i m/s.They meet in a head-on elastic collision. a) Find their velocities after the collision b) Find the velocity of their center of mass before and after collision