A slender rod of mass and length rests on a horizontal frictionless surface. The rod is pivoted about one of its ends. The impulse of the force exerted on the rod by the pivot when the rod is struck by a blow of impulse perpendicular to the rod at other end is |
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a) |
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b) |
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c) |
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d) |
Information is insufficient |
A slender rod of mass and length rests on a horizontal frictionless surface. The rod is pivoted about one of its ends. The impulse of the force exerted on the rod by the pivot when the rod is struck by a blow of impulse perpendicular to the rod at other end is |
|
a) |
|
b) |
|
c) |
|
d) |
Information is insufficient |
(b)
Let be the impulse exerted by the pivot on the rod. Then from impulse momentum theorem, where is the velocity acquired by the centre of mass
Now apply, angular impulse = change in angular momentum about the pivot
where is the angular velocity of the rod