JEE Mains 2020 Model Paper 2 New Pattern

A uniform spherical shell of mass ‘m’ and radius ‘R’ is imparted an initial velocity v0 and angular velocity ω0(=

v0

2R

) on a rough inclined plane of inclination θ. The coefficient of friction between the spherical shell and the inclined plane is µ = tan θ . The time after which pure rolling motion starts is