There is a small hole at the center of a frictionless horizontal table. Blocks A and B each of mass m are connected using an inextensible & massless string which passes through the hole as shown. Initially B is held at rest and A performs uniform circular motion with radius $r_{0}$ and angular velocity $ω_{0}$ . Find the acceleration of B (in $m / s^{2}$ ) immediately after it is released?

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

answer is 3.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

$a_{x} = \overset{• •}{r} - w^{2} r = - a - ω^{2} r_{0}$

$m g - T = m a T = m a + m ω^{2} r_{0} \Rightarrow m g = 2 m a + m ω^{2} r_{0} \Rightarrow a = \frac{g - ω^{2} r_{0}}{2}$

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE