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General
Easy
Question
Two points of a rigid body are moving as shown. The angular velocity of the body is:
The correct answer is:
Related Questions to study
physics-
A 5 m long pole of 3 kg mass is placed against a smooth vertical well as shown in the figure. Under equilibrium condition, if the pole makes an angle of 37° with the horizontal, the frictional force between the pole and horizontal surface is
A 5 m long pole of 3 kg mass is placed against a smooth vertical well as shown in the figure. Under equilibrium condition, if the pole makes an angle of 37° with the horizontal, the frictional force between the pole and horizontal surface is
physics-General
physics-
A disc of radius r is rotating about its centre with an angular speed 
. It is gently placed on a rough horizontal surface. After what time it will be in pure rolling?
A disc of radius r is rotating about its centre with an angular speed . It is gently placed on a rough horizontal surface. After what time it will be in pure rolling?
physics-General
physics-
A thin uniform straight rod of mass 2 kg and length 1 m is free to rotate about its upper end when at rest. It receives an impulsive blow of 10 Ns at its lowest point, normal to its length as shown in figure. The kinetic energy of rod just after impact is
A thin uniform straight rod of mass 2 kg and length 1 m is free to rotate about its upper end when at rest. It receives an impulsive blow of 10 Ns at its lowest point, normal to its length as shown in figure. The kinetic energy of rod just after impact is
physics-General
physics-
Two equal masses each of mass M are joined by a massless rod of length L. Now an impulse MV is given to the mass M making an angle of 30° with the length of the rod. The angular velocity of the rod just after imparting the impulse is
Two equal masses each of mass M are joined by a massless rod of length L. Now an impulse MV is given to the mass M making an angle of 30° with the length of the rod. The angular velocity of the rod just after imparting the impulse is
physics-General
physics-
Portion AB of the wedge shown in figure is rough and BC is smooth. A solid cylinder rolls without slipping from A to B. The ratio of translational kinetic energy to rotational kinetic energy, when the cylinder reaches point C is:
Portion AB of the wedge shown in figure is rough and BC is smooth. A solid cylinder rolls without slipping from A to B. The ratio of translational kinetic energy to rotational kinetic energy, when the cylinder reaches point C is:
physics-General
physics-
A plank with a uniform sphere placed on it, rests on a smooth horizontal plane. Plank is pulled to right by a constant force F. If the sphere does not slip over the plank
A plank with a uniform sphere placed on it, rests on a smooth horizontal plane. Plank is pulled to right by a constant force F. If the sphere does not slip over the plank
physics-General
Physics-
A wheel of radius r rolling on a straight line, the velocity of its centre being v. At a certain instant the point of contact of the wheel with the grounds is M and N is the highest point on the wheel (diametrically opposite to M). The incorrect statement is:
A wheel of radius r rolling on a straight line, the velocity of its centre being v. At a certain instant the point of contact of the wheel with the grounds is M and N is the highest point on the wheel (diametrically opposite to M). The incorrect statement is:
Physics-General
Physics-
A weightless rod is acted on by upward parallel forces of 2N and 4N ends A and B respectively. The total length of the rod AB = 3m. To keep the rod in equilibrium a force of 6N should act in the following manner:
A weightless rod is acted on by upward parallel forces of 2N and 4N ends A and B respectively. The total length of the rod AB = 3m. To keep the rod in equilibrium a force of 6N should act in the following manner:
Physics-General
physics-
A disc of circumference s is at rest at a point A on a horizontal surface when a constant horizontal force begins to act on its centre. Between A and B there is sufficient friction to prevent slipping, and the surface is smooth to the right of B. AB = s. The disc moves from A to B in time T. To the right of B,
A disc of circumference s is at rest at a point A on a horizontal surface when a constant horizontal force begins to act on its centre. Between A and B there is sufficient friction to prevent slipping, and the surface is smooth to the right of B. AB = s. The disc moves from A to B in time T. To the right of B,
physics-General
physics-
Inner and outer radii of a spool are r and R respectively. A thread is wound over its inner surface and placed over a rough horizontal surface. Thread is pulled by a force F as shown in fig. then in case of pure rolling
Inner and outer radii of a spool are r and R respectively. A thread is wound over its inner surface and placed over a rough horizontal surface. Thread is pulled by a force F as shown in fig. then in case of pure rolling
physics-General
physics-
A yo-yo is resting on a rough horizontal table. Forces F1, F2 and F3 are applied separately as shown. The correct statement is
A yo-yo is resting on a rough horizontal table. Forces F1, F2 and F3 are applied separately as shown. The correct statement is
physics-General
physics-
A hinged construction consists of three rhombs with the ratio of sides 5:3:2. Vertex A3 moves in the horizontal direction at a velocity v. Velocity of A2 is
A hinged construction consists of three rhombs with the ratio of sides 5:3:2. Vertex A3 moves in the horizontal direction at a velocity v. Velocity of A2 is
physics-General
physics-
A particle starts from the point (0m, 8m) and moves with uniform velocity of 
After 5 seconds, the angular velocity of the particle about the origin will be:
A particle starts from the point (0m, 8m) and moves with uniform velocity of After 5 seconds, the angular velocity of the particle about the origin will be:
physics-General
physics-
ABCD is a square plate with centre O. The moments of inertia of the plate about the perpendicular axis through O is I and about the axes 1, 2, 3 & 4 are I1, I2, I3 & I4 respectively. It follows that:
ABCD is a square plate with centre O. The moments of inertia of the plate about the perpendicular axis through O is I and about the axes 1, 2, 3 & 4 are I1, I2, I3 & I4 respectively. It follows that:
physics-General
physics-
A sphere of mass m is held between two smooth inclined walls. The normal reaction of the wall 2 is equal to
A sphere of mass m is held between two smooth inclined walls. The normal reaction of the wall 2 is equal to
physics-General
