Recent content by naznad

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    Another rotational motion problem

    A spherical ball of radius r and mass m colides with a plank og mass M on a smooth horizontal surface.Before impact, the centre of the ball has a velocity vo( v knot) and angular velocity wo( omega knot) as I've shown in the figure.The norm velocity is reversed with same magnitude and the ball...
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    How Does Conservation of Momentum Affect the Motion of a Boy and a Plank on Ice?

    im really sorry i forgot to mention about the friction being neglected only between the plank and the ice but i do think that was OBVIOUS.Anyway you did figure that out later.
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    How Does Conservation of Momentum Affect the Motion of a Boy and a Plank on Ice?

    The boy jumps onn the plank at the end with contact with the ice and perpendicular to the surface.
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    How Does Conservation of Momentum Affect the Motion of a Boy and a Plank on Ice?

    A boy of mass m runs on ice with velocity v and steps on the end of a plank of length l and mass M perpendicular to his path. Describe quantitatively the motion of the sytem.Neglect friction One point on the plank is at rest immediately after the collision.Where is it?
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