A particle of mass m is initially situated at the point P inside a hemispherical surface of radius r as shown in figure. A horizontal acceleration of magnitude a_(0) is suddenly produced on the particle in the horizontal direction. If gravitational acceleration is neglected, the time taken by particle to touch the sphere again is

A particle of mass m is initially situated at the point P inside a hem

1.	A particle of mass m is initially situated at the point P inside a hemispherical surface of radius r as shown in figure. A horizontal acceleration of magnitude a_(0) is suddenly produced on the particle in the horizontal direction. If gravitational acceleration is neglected, the time taken by particle to touch the sphere again is
Answer» `sqrt((4R sin alpha)/(a_(0)))` `sqrt((4r TAN alpha)/(a_(0)))` `sqrt((4r cos alpha)/(a_(0)))` NONE of these Solution :NA