Physics-
General
Easy
Question
A uniform rod of length 1 is pivoted at point A. It is struck by a horizontal force which delivers an impulse J at a distance x from point A as shown in fig, impulse delivered by pivot is zero if x is equal to
The correct answer is:
Related Questions to study
physics-
A rod of mass m and length 1 is hinged at one of its end A as shown in fig. A force F is applied at a distance x from A. The acceleration of centre of mass (A) varies with x as
"
A rod of mass m and length 1 is hinged at one of its end A as shown in fig. A force F is applied at a distance x from A. The acceleration of centre of mass (A) varies with x as
"
physics-General
physics-
A uniform wheel of moment of inertia 1 as shown is pivoted on a horizontal axis through its centre so that its plane is vertical. A small mass m is stuck on the rim of the wheel as shown. The angular acceleration of the wheel when mass is at point A is 
and when mass is at point B is 
. Then
A uniform wheel of moment of inertia 1 as shown is pivoted on a horizontal axis through its centre so that its plane is vertical. A small mass m is stuck on the rim of the wheel as shown. The angular acceleration of the wheel when mass is at point A is and when mass is at point B is . Then
physics-General
physics-
A rod AB of length 1 m is placed at the edge of a smooth table as shown in fig. It is hit horizontally at point B. If the displacement of centre of mass in 1 s is 
. The angular velocity of the rod is 
A rod AB of length 1 m is placed at the edge of a smooth table as shown in fig. It is hit horizontally at point B. If the displacement of centre of mass in 1 s is . The angular velocity of the rod is
physics-General
physics-
A uniform rod of mass m, length l is placed over a smooth horizontal surface along y-axis and is at rest as shown in figure. An impulsive force F is applied for a small time 
along at point A. The x-coordinate of end A of the rod when the rod becomes parallel to x-axis for the first time is (initially the coordinate of centre of mass of the rod is (0,0)) :
A uniform rod of mass m, length l is placed over a smooth horizontal surface along y-axis and is at rest as shown in figure. An impulsive force F is applied for a small time along at point A. The x-coordinate of end A of the rod when the rod becomes parallel to x-axis for the first time is (initially the coordinate of centre of mass of the rod is (0,0)) :
physics-General
physics-
Moment of inertia of a triangle plane of mass M shown in the figure, about vertical axis AB is:
Moment of inertia of a triangle plane of mass M shown in the figure, about vertical axis AB is:
physics-General
physics-
The radius of gyration of solid hemisphere of mass M and radius R about an axis parallel to the diameter at a distance 3/4R from this plane is given by ( centre of mass of the hemisphere of the hemisphere lies at a height 3R/8 from the base)
The radius of gyration of solid hemisphere of mass M and radius R about an axis parallel to the diameter at a distance 3/4R from this plane is given by ( centre of mass of the hemisphere of the hemisphere lies at a height 3R/8 from the base)
physics-General
physics-
A square plate of mass M and edge L is shown in fig. The moment of inertia of the plate about the axis in the plane of plate and passing through one of its vertex making an angle 15° from horizontal is
A square plate of mass M and edge L is shown in fig. The moment of inertia of the plate about the axis in the plane of plate and passing through one of its vertex making an angle 15° from horizontal is
physics-General
physics-
A circular plate of radius 1/2R is cut from one edge of a thin circular plate of radius R. The moment of inertia of the remaining portion about an axis through O perpendicular to plane of the plate (i.e about the 
axis 
is ( M= mass of remaining circular plate. )
A circular plate of radius 1/2R is cut from one edge of a thin circular plate of radius R. The moment of inertia of the remaining portion about an axis through O perpendicular to plane of the plate (i.e about the axis is ( M= mass of remaining circular plate. )
physics-General
physics-
A symmetrical lamina of mass M consists of a square shape with a semicircular section over each of the edge of the square as shown. The moment of inertia of the lamina about an axis through the centre of mass and perpendicular to the plane is 
. The moment of inertia about the tangent 
in the plane of the lamina is
A symmetrical lamina of mass M consists of a square shape with a semicircular section over each of the edge of the square as shown. The moment of inertia of the lamina about an axis through the centre of mass and perpendicular to the plane is . The moment of inertia about the tangent in the plane of the lamina is
physics-General
physics-
A uniform disc of radius R lies in x-y plane with its centre at origin. Its moment of inertia about the axis x= 2R and y=0 is equal to the moment of inertia about the axis y=d and z=0. Where d is equal to
A uniform disc of radius R lies in x-y plane with its centre at origin. Its moment of inertia about the axis x= 2R and y=0 is equal to the moment of inertia about the axis y=d and z=0. Where d is equal to
physics-General
chemistry-
Ionisation energies of Ni and Pt in kJ mol–1 are given below
Ionisation energies of Ni and Pt in kJ mol–1 are given below
chemistry-General
physics-
A block of mass 12 kg is attached to a string wrapped around a wheel of radius 10 cm. The acceleration of the block moving down the inclined plane is 
. The tension in the string is (I of wheel 
kg 
)
A block of mass 12 kg is attached to a string wrapped around a wheel of radius 10 cm. The acceleration of the block moving down the inclined plane is . The tension in the string is (I of wheel kg )
physics-General
physics-
' O ' is the center of a square ABCD.
and 
are four forces acting along the sides AB, BC, CD and AD as shown in figure. What should be the magnitude of so that, the total torque about 'O' is zero ?
' O ' is the center of a square ABCD. and are four forces acting along the sides AB, BC, CD and AD as shown in figure. What should be the magnitude of so that, the total torque about 'O' is zero ?
physics-General
physics-
A cylinder of mass M and radius R starts falling under gravity at t=0 as shown in figure. If the mass of chord is negligible, the tension in each string is
A cylinder of mass M and radius R starts falling under gravity at t=0 as shown in figure. If the mass of chord is negligible, the tension in each string is
physics-General
physics-
A block of mass 2 kg hangs from the rim of a wheel of radius 0.5 m. On releasing from rest, the block falls through 5 m height in 2 s. The M.I. of the wheel will be
A block of mass 2 kg hangs from the rim of a wheel of radius 0.5 m. On releasing from rest, the block falls through 5 m height in 2 s. The M.I. of the wheel will be
physics-General
