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प्रश्न
Define couple.
उत्तर
Two equal and opposite forces acting perpendicular and separated by some distance d is called a couple.
A couple of causes are pure rotation.
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संबंधित प्रश्न
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A, B and C are the three forces each of magnitude 4 N acting in the plane of the paper as shown in Figure. The point O lies in the same plane.
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(a) Clockwise
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gravitation force
A person standing in front of a cliff fires a gun and hears its echo after 3s. If the speed of sound in air is 336 ms-1
- Calculate the distance of the person from the cliff.
- After moving a certain distance from the cliff, he fires the gun again, and this time the echo is heard 1.5 s later than the first. Calculate the distance that the person moved.
