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The moment of inertia of a uniform rod about a perpendicular axis passing through one end is I1. The same rod is bent into a ring and its moment of inertia about a diameter is I2. Then I1/I2 is
23
Oct
The moment of inertia of a uniform rod about a perpendicular axis passing through one end is I1. The same rod is bent into a ring and its moment of inertia about a diameter is I2. Then I1/I2 is The moment of inertia of a uniform rod about a perpendicular axis passing through one end [...]
From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of Q about an axis passing through its center and perpendicular to tis plane is 8 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)
23
Oct
From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of Q about an axis passing through its center and perpendicular to tis plane is 8 times that of P about a similar axis, the value of n is (diameter [...]
The moment of inertia of a circular disc of mass M and radius R about an axis passing through the center of mass is I0. The moment of inertia of another circular disc of same mass and thickness but half the density about the same axis is
23
Oct
The moment of inertia of a circular disc of mass M and radius R about an axis passing through the center of mass is I0. The moment of inertia of another circular disc of same mass and thickness but half the density about the same axis is Let IA and IB be moments of inertia [...]
Two circular discs are of same thickness. The diameter of A is twice that of B. The moment of inertia of A as compared to that of B is
23
Oct
Two circular discs are of same thickness. The diameter of A is twice that of B. The moment of inertia of A as compared to that of B is Two circular discs are of same thickness. The diameter of A is twice that of B. The moment of inertia of A as compared to that [...]
A closed cylindrical tube containing some water (not filling the entire tube) lies in a horizontal plane. If the tube is rotated the moment of inertia of water about the axis
23
Oct
A closed cylindrical tube containing some water (not filling the entire tube) lies in a horizontal plane. If the tube is rotated the moment of inertia of water about the axis A closed cylindrical tube containing some water (not filling the entire tube) lies in a horizontal plane. If the tube is rotated the moment [...]
Let IA and IB be moments of inertia of a body about two axes A and B respectively. The axis A passes through the centre of mass of the body but B does not
23
Oct
Let IA and IB be moments of inertia of a body about two axes A and B respectively. The axis A passes through the centre of mass of the body but B does not Let IA and IB be moments of inertia of a body about two axes A and B respectively. The axis A [...]
The rate of mass of the gas emitted from the rear of a rocket is initially 0.1kg/s. If the speed of the gas relative to the rocket is 50m/s and the mass of the rocket is 2kg , then the acceleration of the rocket in m/s^2 is
23
Oct
The rate of mass of the gas emitted from the rear of a rocket is initially 0.1kg/s. If the speed of the gas relative to the rocket is 50m/s and the mass of the rocket is 2kg , then the acceleration of the rocket in m/s^2 is The rate of mass of the gas emitted [...]
A block of mass m is pushed towards the movable wedge of mass M and height h, with a velocity v0. All surfaces are smooth . The minimum value of v0 for which the block will reach the top of the wedge is
23
Oct
A block of mass m is pushed towards the movable wedge of mass M and height h, with a velocity v0. All surfaces are smooth . The minimum value of v0 for which the block will reach the top of the wedge is A block of mass m is pushed towards the movable wedge of [...]
A particle of mass m, initially at rest is acted upon by a variable force F for a brief interval of time T. It begins to move with a velocity u after the force stops acting. F is shown in the graph as a function of time. The curve is a semicircle.
23
Oct
A particle of mass m, initially at rest is acted upon by a variable force F for a brief interval of time T. It begins to move with a velocity u after the force stops acting. F is shown in the graph as a function of time. The curve is a semicircle. A force - [...]
A particle of mass 2 kg is initially at rest. A fore acts on it whose magnitude changes with time. The force – time graph is shown below. The velocity of the particle after 10s is
22
Oct
A particle of mass 2 kg is initially at rest. A fore acts on it whose magnitude changes with time. The force – time graph is shown below. The velocity of the particle after 10s is A particle of mass 2 kg is initially at rest. A fore acts on it whose magnitude changes with [...]