Vishal Kamalakannan
Last Activity: 13 Years ago
Let the tangential acceleration be a and initial ang vel be wi. Now ang vel at time t(w) will vary as w=wi=at. At time t centripetal acceleration is =R(w*w). Tangential acceleration =a. tan inverse of a and R(w*w) should b1 implying that they are equal.
So on solving the equality you should probably get the correct answer