Questions asked by Vishal J.

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• Why is kinetic friction always less than limiting friction?
  
• A stationary mass sudddenly explodes into two fragments, one heavy and another light. Which one has greater kinetic energy and why?
  
• How to show that the line 3x+4y=20 is a tangent to the circle x^2+y^2=16?
  
• Find the general value of x if: cosx+sinx=cos2x+sin2x, using sinc-sind and cosc-cosd formula?
  
• For what value of c, the lines which join the origin to the points of intersection of the given straight line and the curve be at right angle?
  
• How do you find dy/dx when x=a(cost+tsint) and y=a(sint-tcost)?
  
• Can anyone help me with this limit problem?
  
• Solve: #lim_(x→ ∞) sqrt(x)(sqrt(x)-sqrt(x-a))# ?
  
• Solve: Lim #x->1# #(sqrt(x)-sqrt(2-x^2))/(2x-sqrt(2+2x^2)# ?
  
• Which curve is more steeper, isothermal or adiabatic? Explain please
  
• Verify the principle of conservation of linear momentum using newton's second law of motion only?
  
• If #alpha and beta# are the roots of a quadratic equation #px^2+qx+q=0#, prove that #sqrt(alpha/beta)+sqrt(beta/alpha)+sqrt(q/p)=0#?
  
• Solve: #sinx+cosx=sqrt(2)# one the interval # (-2pi<=x<=2pi)# ?
  
• Two charges #+1*10^-6# and #-4*10^-6# are separatd by a distance of 2 m. Where is the null point located?