Physics · 2024
JEE Main · 29 January 2024, Shift 2 · Q33
A bob of mass ' m ' is suspended by a light string of length ' L '. It is imparted a minimum horizontal velocity at the lowest point A such that it…
A bob of mass ' $\displaystyle m$ ' is suspended by a light string of length ' $\displaystyle L$ '. It is imparted a minimum horizontal velocity at the lowest point $\displaystyle A$ such that it just completes half circle reaching the top most position B . The ratio of kinetic energies $\displaystyle \frac{(K . E)_A}{(K . E)_B}$ is :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 5$:$\displaystyle 1$
More from Circular Motion
- A body of m kg slides from rest along the curve of vertical circle from point A to B in friction less path. The velocity of the body at B is: (given,…2024
- A large drum having radius R is spinning around its axis with angular velocity ω, as shown in figure. The minimum value of ω so that a body of mass M…2026
- A train is moving with a speed of 12 m / s on rails which are 1.5 m apart. To negotiate a curve of radius 400 m, the height by which the outer rail…2024
- A car moving with a speed of 54 km / h takes a turn of radius 20 m. A simple pendulum is suspended from the ceiling of the car. Determine the angle…2026
- A body of mass 'm' connected to a massless and unstretchable string goes in verticle circle of radius 'R'under gravity g. The other end of the string…2025
- A car of 800 kg is taking turn on a banked road of radius 300 m and angle of banking 30°. If coefficient of static friction is 0.2 then the maximum…2024
- A coin is placed on a disc. The coefficient of friction between the coin and the disc is μ. If the distance of the coin from the center of the disc…2024
- In case of vertical circular motion of a particle by a thread of length r if the tension in the thread is zero at an angle 30° shown in figure, the…2026
JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.