Physics-
General
Easy
Question
A particle is moving with a constant angular velocity about an exterior axis. Its linear velocity will depend upon -
- perpendicular distance of the particle form the axis
- the mass of particle
- angular acceleration of the particle
- the linear acceleration of particle
The correct answer is: perpendicular distance of the particle form the axis
Related Questions to study
Physics-
Figure shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the common axis. The strings supporting A and B do not slip on the wheels. If x and y be the distances travelled by A and B in the same time interval, then-
Figure shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the common axis. The strings supporting A and B do not slip on the wheels. If x and y be the distances travelled by A and B in the same time interval, then-
Physics-General
Physics-General
Physics-
A body rotates at 300 rotations per minute. The value in radian of the angle described in 1 sec is-
A body rotates at 300 rotations per minute. The value in radian of the angle described in 1 sec is-
Physics-General
Physics-
A wheel starts rotating from rest and attains an angular velocity of 60 rad/sec in 5 seconds. The total angular displacement in radians will be-
A wheel starts rotating from rest and attains an angular velocity of 60 rad/sec in 5 seconds. The total angular displacement in radians will be-
Physics-General
Physics-
The moment of inertia of a body is I and its coefficient of linear expansion is if temperature of body rises by a small amount T. Then change in moment of inertia about the same axis –
The moment of inertia of a body is I and its coefficient of linear expansion is if temperature of body rises by a small amount T. Then change in moment of inertia about the same axis –
Physics-General
Physics-
A rod of mass m and length l is hinged at one of its end A as shown in figure. 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 l is hinged at one of its end A as shown in figure. 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-General
Physics-
A loop of radius 3 meter and weighs 150 kg. It rolls along a horizontal floor so that its centre of mass has a speed of 15 cm/sec. How much work has to be done to stop it –
A loop of radius 3 meter and weighs 150 kg. It rolls along a horizontal floor so that its centre of mass has a speed of 15 cm/sec. How much work has to be done to stop it –
Physics-General
Physics-
Two loops P and Q are made from a uniform wire. The radii of P and Q are r1 and r2 respectively, and their moments of inertia are I1 and I2 respectively. If I2 = 4I1 , then equals –
Two loops P and Q are made from a uniform wire. The radii of P and Q are r1 and r2 respectively, and their moments of inertia are I1 and I2 respectively. If I2 = 4I1 , then equals –
Physics-General
Physics-
The angular speed of rotating rigid body is increased from 4 to 5 . The percentage increase in its K.E. is –
The angular speed of rotating rigid body is increased from 4 to 5 . The percentage increase in its K.E. is –
Physics-General
Physics-
A particle performs uniform circular motion with angular momentum 'L'. If the frequency of particles motion is halved and its KE is doubled then the angular momentum becomes –
A particle performs uniform circular motion with angular momentum 'L'. If the frequency of particles motion is halved and its KE is doubled then the angular momentum becomes –
Physics-General
Physics-
What must be the relation between length 'L' and radius 'R' of the cylinder if its moment of inertia about its axis is equal to that about the equatorial axis ?
What must be the relation between length 'L' and radius 'R' of the cylinder if its moment of inertia about its axis is equal to that about the equatorial axis ?
Physics-General
Physics-
A solid sphere of mass M and radius R is placed on a smooth horizontal surface. It is given a horizontal impulse J at a height h above the centre of mass and sphere starts rolling then, the value of h and speed of centre of mass are –
A solid sphere of mass M and radius R is placed on a smooth horizontal surface. It is given a horizontal impulse J at a height h above the centre of mass and sphere starts rolling then, the value of h and speed of centre of mass are –
Physics-General
Physics-General
Physics-
A square plate is kept in yz-plane. Then according to perpendicular axis theorem -
A square plate is kept in yz-plane. Then according to perpendicular axis theorem -
Physics-General
Physics-
A sphere of radius 'R' is rolling over a horizontal surface. All measurement are made with respect to surface over which sphere is rolling. Which of the following strictly confirms pure rolling motion of sphere over horizontal surface ?
A sphere of radius 'R' is rolling over a horizontal surface. All measurement are made with respect to surface over which sphere is rolling. Which of the following strictly confirms pure rolling motion of sphere over horizontal surface ?
Physics-General
Physics-
One end of a uniform rod of length l and mass m is hinged at A. It is released from rest from horizontal position AB as shown in figure. The force exerted by the rod on the hinge when it becomes vertical is -
One end of a uniform rod of length l and mass m is hinged at A. It is released from rest from horizontal position AB as shown in figure. The force exerted by the rod on the hinge when it becomes vertical is -
Physics-General
Physics-General
Physics-
When a circular coil of radius 1 m and 100 turns is rotated in a horizontal uniform magnetic field, the peak value of emf induced is 100 V. the coil is unwound and then rewound into a circular coil of radius 2 m. If it is rotated now, with the same speed, under similar conditions, the new peak value of emf developed is
When a circular coil of radius 1 m and 100 turns is rotated in a horizontal uniform magnetic field, the peak value of emf induced is 100 V. the coil is unwound and then rewound into a circular coil of radius 2 m. If it is rotated now, with the same speed, under similar conditions, the new peak value of emf developed is
Physics-General