Start Free Mock LoginAlready registered? Login here

Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousMedium2 minPYQ_2024

PhysicsMediumsingle choice

A bob is whirled in a horizontal circle by means of a string at an initial speed of 10 rpm. If the tension in the string is quadrupled while keeping the radius constant, the new speed is:NEET 2024 (Re-NEET)

Options:

Answer:

Solution:

In horizontal circular motion, $T = m ω^{2} r$ For constant $m$ and $r, T \propto ω^{2}$ $T = 4 T$ (Given) $\Rightarrow ω^{'} = 2 ω$ $= 20 rpm$

Stream:NEETSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2024

Doubts & Discussion

Loading discussions...