Physics-
General
Easy

Question

Let stack F with rightwards arrow on top be a force acting on a particle having position vector stack r with rightwards arrow on top. Let stack tau with rightwards arrow on top be the torque of this force about the origin, then-

  1. stack r with rightwards arrow on top. stack tau with rightwards arrow on top = 0 and stack F with rightwards arrow on top. stack tau with rightwards arrow on top= 0  
  2. stack r with rightwards arrow on top. stack tau with rightwards arrow on top = 0 and stack F with rightwards arrow on top. stack tau with rightwards arrow on top  0  
  3. stack r with rightwards arrow on top. stack tau with rightwards arrow on top  0 and stack F with rightwards arrow on top. stack tau with rightwards arrow on top 0  
  4. stack r with rightwards arrow on top. stack tau with rightwards arrow on top  0 and stack F with rightwards arrow on top. stack tau with rightwards arrow on top 0  

The correct answer is: stack r with rightwards arrow on top. stack tau with rightwards arrow on top = 0 and stack F with rightwards arrow on top. stack tau with rightwards arrow on top= 0

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