What is the radius of curvature of the parabola traced out by the projectile in the previous problem at a point where the particle velocity makes an angle 
/2 with the horizontal.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Let 'u' the velocity at the pt where it makes an angle 
with horizontal. The horizontal component remains unchanged
So, 
…… .(i)
From figure
putting the value of ' 
' from equn(i)
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