1.

A particle slides down the surface of a smooth fixed sphere of radius R starting from rest at the highest point B. Particle leaves the sphere at some point and then strikes the horizontal plane passing through the lowest point A of the sphere at point P. The distance AP is given by AP=n/27[sqrt(n)+4sqrt(2)]R where 'n' is an integer, find n (Take g=10m//s^(2))

Answer»


SOLUTION :For LEAVING the surface, `COS theta =2//3`
`y=(v SIN theta)t+1//2 "gt"^(2)=R(1+costheta)` ……..(1)
and `x=(v cos theta)t` ………(2)
and `v^(2)=2/3 gR`…..(3)
On soving
`AP= Rsin theta +x=5/27 (sqrt(5)+4sqrt(2))R`


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