The point of application of the
resultant of all the forces which tends to cause rotation in the body about a
certain axis known as________.
सभी बलों के परिणाम के अनुप्रयोग का बिंदु जो शरीर में एक निश्चित अक्ष के बारे में घूर्णन का कारण बनता है, उसे ________ के रूप में जाना जाता है।
center of gravity
the point of metacenter
point of suspension
centre of percussion
centre of percussion
The axis about which a point of
application of the resultant of all the forces tends to cause rotation in the
body is termed as center of percussion.
Hence, the correct option is (D)
&Key Points:-
Center of percussion : It is a point on an object of mass m, attached to a pivot where a perpendicular impact will produce no reactive shock at the pivot. Translational and rotational motions cancel at the pivot when an impulsive force is applied at the center of percussion as shown in figure.
In figure drawn below, O is the point
of suspension, G is the center of gravity and C is the center of percussion. All
torques are balanced when the ball is hit at the center of percussion otherwise
it acts as the sting
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