Question Answers
Sahay Sir > Question Answers
A spring block pendulum is shown in the given figure. The system is hanging in equilibrium. A bullet of mass m/2 moving at a speed u hits the block from downward direction and gets embedded in it. Find the amplitude of oscillation of the block now.
04
Sep
A spring block pendulum is shown in the given figure. The system is hanging in equilibrium. A bullet of mass m/2 moving at a speed u hits the block from downward direction and gets embedded in it. Find the amplitude of oscillation of the block now. A uniform cylinder of mass m and radius R [...]
A uniform cylinder of mass m and radius R is in equilibrium on an inclined plane by the action of a light spring of stiffness k, gravity and reaction force acting on it. If the angle of inclination of the plane is
04
Sep
A uniform cylinder of mass m and radius R is in equilibrium on an inclined plane by the action of a light spring of stiffness k, gravity and reaction force acting on it. If the angle of inclination of the plane is A uniform cylinder of mass m and radius R is in equilibrium on [...]
A circular spring of natural length l0 is cut and welded with two beads of masses m1 and m2 such that the ratio of the lengths of the springs between the beads 4:1. If the stiffness of the original spring is k,
04
Sep
A circular spring of natural length l0 is cut and welded with two beads of masses m1 and m2 such that the ratio of the lengths of the springs between the beads 4:1. If the stiffness of the original spring is k, A sphere of mass m and radius r rolls without slipping on a [...]
One end of an ideal spring is fixed to a wall at origin O and axis of spring is parallel to the x-axis. A block of mass m = 1 kg is attached to the free end of the spring and it is performing SHM. Equation of position of the block in coordinate
04
Sep
One end of an ideal spring is fixed to a wall at origin O and axis of spring is parallel to the x-axis. A block of mass m = 1 kg is attached to the free end of the spring and it is performing SHM. Equation of position of the block in coordinate A sphere [...]
A sphere of mass m and radius r rolls without slipping on a rough concave surface of large radius R. It makes small oscillations about the lowest point. Find the time period.
04
Sep
A sphere of mass m and radius r rolls without slipping on a rough concave surface of large radius R. It makes small oscillations about the lowest point. Find the time period. A sphere of mass m and radius r rolls without slipping on a rough concave surface of large radius R. It makes small [...]
A certain mass of a perfect gas is enclosed in a cylinder of volume V0 fitted with a smooth heavy piston of mass m and area a. The piston is displaced through a small distance downwards so as to compress the gas isothermally, and then it is let go.
04
Sep
A certain mass of a perfect gas is enclosed in a cylinder of volume V0 fitted with a smooth heavy piston of mass m and area a. The piston is displaced through a small distance downwards so as to compress the gas isothermally, and then it is let go. A uniform plank of mass m [...]
A uniform plank of mass m, free to move in the horizontal direction only, is placed at the top of a solid cylinder of mass 2m and radius R. The plank is attached to a fixed wall by means of a light spring of spring constant k. There is no
04
Sep
A uniform plank of mass m, free to move in the horizontal direction only, is placed at the top of a solid cylinder of mass 2m and radius R. The plank is attached to a fixed wall by means of a light spring of spring constant k. There is no A uniform plank of mass [...]
A uniform horizontal plank is resting symmetrically in a horizontal position on two cylindrical drums, which are spinning in opposite direction about their horizontal axes with equal angular velocity. The distance
04
Sep
A uniform horizontal plank is resting symmetrically in a horizontal position on two cylindrical drums, which are spinning in opposite direction about their horizontal axes with equal angular velocity. The distance A uniform horizontal plank is resting symmetrically in a horizontal position on two cylindrical drums which are spinning in opposite direction about their horizontal [...]
A cyclotron is used to acceleration protons. deuterons, α-particles etc. If the energy attained, after acceleration, by the protons is E, the energy attained by α-particles shall be:
04
Sep
A cyclotron is used to acceleration protons. deuterons, α-particles etc. If the energy attained, after acceleration, by the protons is E, the energy attained by α-particles shall be: A cyclotron is used to acceleration protons. deuterons after acceleration by the protons is E the energy attained by α-particles shall be: α-particles etc. If the energy [...]
A person normally weighing 60 kg stands on a platform which oscillates up and down harmonically at a frequency 2.0 sec^-1 and an amplitude 5.0 cm. If a machine on the platform gives the person’s weight against time,
04
Sep
A person normally weighing 60 kg stands on a platform which oscillates up and down harmonically at a frequency 2.0 sec^-1 and an amplitude 5.0 cm. If a machine on the platform gives the person’s weight against time, A force F = -10x + 2 acts on a particle of mass 0.1 kg find: (a) [...]