Physics-
General
Easy

Question

A particle when projected in vertical plane moves along smooth surface with initial velocity 20m/s at an angle of 60°, so that its normal reaction on the surface remains zero throughout the motion. Then the slope of the tangent to the surface at height 5 m from the point of projection will be

  1. 30°    
  2. 45°    
  3. t a n to the power of negative 1 end exponent invisible function application left parenthesis 2 right parenthesis    
  4. t a n to the power of negative 1 end exponent invisible function application left parenthesis square root of 2 right parenthesis    

The correct answer is: t a n to the power of negative 1 end exponent invisible function application left parenthesis square root of 2 right parenthesis

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