Physics-
General
Easy
Question
A cylinder of mass m suspended by two strings wrapped around the cylinder one near each end, the free ends of the strings being attached to hooks on the ceiling, such that the length of the cylinder is horizontal, From the position of rest, the cylinder is allowed to roll down as suspension strings unwind. Then calculate the time dependence of the instantaneous power developed by gravity
-
-
-
- None of these
The correct answer is:
Related Questions to study
physics-
A man pushes a cylinder of mass with the help of a plank of mass as shown. There is no slipping at any contact. The horizontal component of the force applied by the man is F. The acceleration of the plank
A man pushes a cylinder of mass with the help of a plank of mass as shown. There is no slipping at any contact. The horizontal component of the force applied by the man is F. The acceleration of the plank
physics-General
physics-
In the fig shown mass of both, the spherical body and block is m. Moment of inertia of the spherical body about centre of mass is . The spherical body rolls on the horizontal surface. There is no slipping at any surfaces in contact. The ratio of kinetic energy of the spherical body to that of block is
In the fig shown mass of both, the spherical body and block is m. Moment of inertia of the spherical body about centre of mass is . The spherical body rolls on the horizontal surface. There is no slipping at any surfaces in contact. The ratio of kinetic energy of the spherical body to that of block is
physics-General
physics-
A solid sphere rolls without slipping along the track shown in fig. The sphere starts from rest from a height h above the bottom of a loop radius R which is much larger than the radius of the sphere r. The minimum value of h for the sphere to complete the loop is
A solid sphere rolls without slipping along the track shown in fig. The sphere starts from rest from a height h above the bottom of a loop radius R which is much larger than the radius of the sphere r. The minimum value of h for the sphere to complete the loop is
physics-General
physics-
The acceleration a of the plank p required to keep the centre C of a cylinder in a fixed position during the motion is no slipping takes place between cylinder and plank)
The acceleration a of the plank p required to keep the centre C of a cylinder in a fixed position during the motion is no slipping takes place between cylinder and plank)
physics-General
physics-
A billiard ball of radius R is struck by a cue as shown. Assume that the impulse given by the cue is purely horizontal. For the ball to roll without any initial slippage
A billiard ball of radius R is struck by a cue as shown. Assume that the impulse given by the cue is purely horizontal. For the ball to roll without any initial slippage
physics-General
physics-
A cylinder of mass m and radius R is rolling without slipping on a horizontal surface with angular velocity . The velocity of centre of mass of cylinder is . The cylinder comes across a step of height .(Assume required friction is present at edge of the step.) angular velocity of cylinder just after the collision is (Assume cylinder remains in contact and no slipping occurs at the edge of the step)
A cylinder of mass m and radius R is rolling without slipping on a horizontal surface with angular velocity . The velocity of centre of mass of cylinder is . The cylinder comes across a step of height .(Assume required friction is present at edge of the step.) angular velocity of cylinder just after the collision is (Assume cylinder remains in contact and no slipping occurs at the edge of the step)
physics-General
physics-
A Cylinder of radius R is spinned and then placed on an incline having coefficient of friction is the angle of incline). The cylinder continues to spin without falling for time
A Cylinder of radius R is spinned and then placed on an incline having coefficient of friction is the angle of incline). The cylinder continues to spin without falling for time
physics-General
physics-
Portion AB of the wedge shown in fig is rough and BC is smooth. A solid cylinder rolls without slipping from A to B If AB=BC, then ratio of translational kinetic energy to rotational kinetic energy, when the cylinder reaches point C is
Portion AB of the wedge shown in fig is rough and BC is smooth. A solid cylinder rolls without slipping from A to B If AB=BC, then ratio of translational kinetic energy to rotational kinetic energy, when the cylinder reaches point C is
physics-General
physics-
Four massless springs whose force constants are 2k,2k, k and 2k respectively are attached to a mass M kept on a frictionless plane (as shown in figure). If the mass M is displaced in the horizontal direction, then the frequency of the system
Four massless springs whose force constants are 2k,2k, k and 2k respectively are attached to a mass M kept on a frictionless plane (as shown in figure). If the mass M is displaced in the horizontal direction, then the frequency of the system
physics-General
physics-
A pendulum of mass m and length L is connected to a spring as shown in figure. If the bob is displaced slightly from its mean position and released, it performs simple harmonic motion .The angular frequency of the oscillation of bob is
A pendulum of mass m and length L is connected to a spring as shown in figure. If the bob is displaced slightly from its mean position and released, it performs simple harmonic motion .The angular frequency of the oscillation of bob is
physics-General
physics-
A ball of mass m is connected to two rubber bands of length L each, under tension T as shown in the figure. The entire system is placed on a smooth horizontal surface. the ball is displaced by a small distance y perpendicular to the length of the rubber bands. Assuming that tension in rubber bands doesn't change the angular frequency of oscillations performed by the ball is
A ball of mass m is connected to two rubber bands of length L each, under tension T as shown in the figure. The entire system is placed on a smooth horizontal surface. the ball is displaced by a small distance y perpendicular to the length of the rubber bands. Assuming that tension in rubber bands doesn't change the angular frequency of oscillations performed by the ball is
physics-General
physics-
A solid ball of mass m is allowed to fall from a height h to a pan suspended with a spring of spring constant k. Assume the ball does not rebound and pan is massless, then amplitude of the oscillation is.
A solid ball of mass m is allowed to fall from a height h to a pan suspended with a spring of spring constant k. Assume the ball does not rebound and pan is massless, then amplitude of the oscillation is.
physics-General
physics-
For the system shown in figure, the rod is light and all the surfaces are frictionless. The time period of motion of block for small oscillations of the rod, is
For the system shown in figure, the rod is light and all the surfaces are frictionless. The time period of motion of block for small oscillations of the rod, is
physics-General
Maths-
Find the value of x in the given figure.
Find the value of x in the given figure.
Maths-General
Maths-
In the given figure, five angles are formed at a point ''O" Find the value of x
In the given figure, five angles are formed at a point ''O" Find the value of x
Maths-General