Physics-
General
Easy

Question

A ball of mass ‘m’ is rotating in a circle of radius ‘r’ with speed v inside a smooth cone as shown in figure. Let N be the normal reaction on the ball by the cone, then choose the wrong option.

  1. N equals m g c o s invisible function application theta    
  2. g s i n invisible function application theta equals fraction numerator v to the power of 2 end exponent over denominator r end fraction c o s invisible function application theta    
  3. N s i n invisible function application theta minus fraction numerator m v to the power of 2 end exponent over denominator r end fraction equals 0    
  4. n o n e blank o f blank t h e s e    

The correct answer is: N equals m g c o s invisible function application theta

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