Part 1
A flywheel rotates about an axis. Due to friction at the axis, it experiences an angular retardation proportional to its angular velocity. If its angular velocity falls to half while it makes n rotations, how many more rotations will it make before coming to rest?
23
Oct
A flywheel rotates about an axis. Due to friction at the axis, it experiences an angular retardation proportional to its angular velocity. If its angular velocity falls to half while it makes n rotations, how many more rotations will it make before coming to rest? A flywheel rotates about an axis. Due to friction at [...]
The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then the angular acceleration of the body is
23
Oct
The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then the angular acceleration of the body is The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then the angular acceleration of the body is October 23, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]
A wheel is subjected to uniform angular acceleration about its axis. Initially, its angular velocity is zero. In the first 2sec, it rotates through an angle θ1, in the next 2sec, it rotates through an angle θ2. The ratio of θ2/θ1 is
23
Oct
A wheel is subjected to uniform angular acceleration about its axis. Initially, its angular velocity is zero. In the first 2sec, it rotates through an angle θ1, in the next 2sec, it rotates through an angle θ2. The ratio of θ2/θ1 is A wheel is subjected to uniform angular acceleration about its axis. Initially in [...]
A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute, then the increase in its angular velocity is
23
Oct
A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute, then the increase in its angular velocity is A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute then the increase in its angular velocity is October 23, 2020 [...]
Three identical uniform rods, each of length l, are joined to form a rigid equilateral triangle. Its radius of gyration about an axis passing through a corner and perpendicular to the plane of the triangle is.
23
Oct
Three identical uniform rods, each of length l, are joined to form a rigid equilateral triangle. Its radius of gyration about an axis passing through a corner and perpendicular to the plane of the triangle is. are joined to form a rigid equilateral triangle. Its radius of gyration about an axis passing through a corner [...]
From a circular disc of radius R and mass 9M, a small disc of radius 3/R is removed as shown in figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc passing through O is
23
Oct
From a circular disc of radius R and mass 9M, a small disc of radius 3/R is removed as shown in figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc passing through O is a small disc of radius 3/R is removed as shown in [...]
The ABC is a triangular plate of uniform thickness. The sides are in the ratio shown in the figure. IAB, IBC and ICA are the moments of inertia of the plate about AB, BC and CA respectively. Which one of the following relations is correct ?
23
Oct
The ABC is a triangular plate of uniform thickness. The sides are in the ratio shown in the figure. IAB, IBC and ICA are the moments of inertia of the plate about AB, BC and CA respectively. Which one of the following relations is correct ? BC and CA respectively. Which one of the following [...]
Out of the following bodies of same mass, which one will have maximum moment of inertia about an axis passing through its center of gravity and perpendicular to its place?
23
Oct
Out of the following bodies of same mass, which one will have maximum moment of inertia about an axis passing through its center of gravity and perpendicular to its place? Out of the following bodies of same mass which one will have maximum moment of inertia about an axis passing through its center of gravity [...]
A symmetric 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 its centre of mass and perpendicular to the plane is 1.6Ma^2. The moment of inertia of the lamina about the tangent AB in the plane of lamina is.
23
Oct
A symmetric 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 its centre of mass and perpendicular to the plane is 1.6Ma^2. The moment of inertia of the lamina about [...]
Consider a uniform square plate of side ‘a’ and mass ‘m’ The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is
23
Oct
Consider a uniform square plate of side ‘a’ and mass ‘m’ The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is Consider a uniform square plate of side 'a' and mass 'm' The moment of inertia of this plate about an axis perpendicular [...]