List of top Physics Questions on Mechanics asked in AP EAPCET

A thin wire of length \(L\) and uniform linear mass density \(\rho\) is bent into a circular loop with centre at \(O\) as shown. The moment of inertia of the loop about the axis \(XX'\) is: center
center
\( I_1 \) represents moment of inertia of a thin, uniform rod about an axis perpendicular to its length and passing through its centre of mass. The same rod is bent into the shape of a ring. If \( I_2 \) is moment of inertia of ring about an axis that is tangent to the ring and perpendicular to its plane, then \(\frac{I_1}{I_2}=\):
\( I_1 \) represents moment of inertia of a thin, uniform rod about an axis perpendicular to its length and passing through its centre of mass. The same rod is bent into the shape of a ring. If \( I_2 \) is moment of inertia of ring about an axis that is tangent to the ring and perpendicular to its plane, then \(\frac{I_1}{I_2}=\):
If the moment of inertia of solid sphere of mass 2 kg and radius 10 cm about its tangent is I, then the moment of inertia of a uniform disc of mass 3.5 kg and radius 20 cm about its diameter is:
A solid sphere and a thin circular ring of same mass and same radii are in rotational motion with same angular speeds about their diameters. Find the ratio of works done to stop them, $W_{sphere} / W_{ring}$:
The acceleration of a uniform disc rolling down an inclined plane of length $1.75\text{ m}$ is $1/3$ times the acceleration due to gravity. If a solid sphere is rolling down from the top of the same inclined plane, then the velocity with which it reaches the bottom of the plane is
At what depth inside Earth does \(g\) become half of its surface value? (Earth radius \(=R\))
A wheel undergoes a constant acceleration starting from rest at \(t=0\). The angular velocity of the wheel is \(3.14\ \text{rad s}^{-1}\) when \(t=2\ \text{s}\). The acceleration is abruptly ceased at \(t=20\ \text{s}\). The number of revolutions the wheel makes in the interval \(t=0\) to \(t=40\ \text{s}\) is
As shown in the figure, two spherical cavities are made in a uniform solid sphere of radius \(R\). The boundaries of the cavities touch at the centre of the sphere. The centers of the cavities and the sphere lie on the \(x\)-axis. The mass of the solid sphere before the cavities were created was \(M\). The gravitational force on a point mass \(m\) at a distance \(d\) away from the center of the solid sphere is
A box of mass \(2\ \text{kg}\) is placed on an inclined plane that makes \(30^\circ\) with the horizontal. The coefficient of friction between the box and inclined plane is \(0.2\). A force \(F\) is applied on the box perpendicular to the incline to prevent the box from sliding down. The minimum value of \(F\) is
\[ (\text{acceleration due to gravity }=10\ \text{m s}^{-2}) \]
Which of the following is true about the coefficient of static friction \((\mu_s)\) and the coefficient of kinetic friction \((\mu_k)\)?
A uniform rod of length \(60\ \text{cm}\) is placed with one end in contact with the horizontal table and is then inclined at an angle \(30^\circ\) to the horizontal and allowed to fall. The angular velocity of the rod when it becomes horizontal is
\[ (\text{acceleration due to gravity }=10\ \text{m s}^{-2}) \]
A car is moving along a straight line and is brought to a stop within a distance of \(200\) m and in time \(10\) s. The initial speed of the car is
A bar of mass \(m\) resting on a smooth horizontal plane starts moving due to a constant force \(F\). In the process of its rectilinear motion, the angle \(\theta\) between the direction of this force and the horizontal varies as \(\theta = kx\), where \(k\) is a constant and \(x\) is the distance traversed by the bar from its initial position. The velocity \(v\) of the bar as a function of the angle \(\theta\) is
Consider three masses \(M_1\), \(M_2\) and \(M_3\), where \(M_1 \gt M_2 \gt M_3\), are at rest on a horizontal plane as shown in the figure. Now the angle of inclination \(\theta\) of the plane is gradually increased until the masses just begin to slide. Assume the coefficient of static friction between the masses and the surface is constant. Then the correct statement is