First slide

Force

Question

A uniform rod of length 1 m and mass 2 kg rotates in a horizontal plane at an angular speed of 6 rad/s, about an axis perpendicular to its length and passing through one of its ends. Then the tension induced at its mid-point is

Difficult

A

$18 N$
B

$48 N$
C

$32 N$
D

$27 N$

Solution

Cl is the midpoint of the part BC.
$T_{C} = \frac{m}{2} . ω^{2} . r = (\frac{2}{2}) {(6)}^{2} . \frac{3}{4} N = 27 N$

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