Systems of Particles and Rotational Motion questions
1884 published questions with worked solutions.
- Four particles of masses m,2m,3m,4m are arranged at the corners of a parallelogram with each side equal to a and one of the...
- Identify the correct statement for the rotational motion of a rigid body.
- Centre of mass is a point
- Masses 8, 2, 4, 2 kg are placed at the corners A,B,C,D respectively of a square ABCD of diagonal 80 cm. The distance of the...
- A 2 kg body and a 3 kg body are moving along the x-axis. At a particular instant the 2 kg body has a velocity of 3 ms ^ -1 and...
- Centre of mass of 3 particles of masses 10 kg, 20 kg and 30 kg is at (0,0,0). Where should a particle of mass 40 kg be placed so...
- A system consisting of two masses connected by a massless rod lies along the x-axis. A 0.4 kg mass is at a distance x=2 m while a...
- Two objects of masses 200 g and 500 g possess velocities 10 m/s and 3 +5 m/s respectively. The velocity of their centre of mass...
- A man weighing 80 kg is standing in a trolley weighing 320 kg. The trolley is resting on frictionless horizontal rails. If the...
- Three masses of 2 kg, 4 kg and 4 kg are placed at the three points (1,0,0), (1,1,0) and (0,1,0) respectively. The position vector...
- Particles of masses m,2m,3m, ,nm grams are placed on the same line at distances l,2l,3l, ,nl cm from a fixed point. The distance...
- The centre of mass of a body
- The moment of inertia of a body about a given axis is 2.4 kg-m ^2. To produce a rotational kinetic energy of 750 J, an angular...
- A point P on the rim of a wheel is initially at rest and in contact with the ground. Find the displacement of point P if the...
- A torque of 50 N-m acting on a wheel at rest rotates it through 200 radians in 5 sec. Calculate the angular acceleration produced.
- A uniform disk of mass M and radius R is mounted on a fixed horizontal axis. A block of mass m hangs from a massless string that...
- A wheel rotates with a constant acceleration of 2.0 radian/sec ^2. If the wheel starts from rest, the number of revolutions it...
- A car is moving at a speed of 72 km/hr. The radius of its wheels is 0.25 m. If the wheels are stopped in 20 rotations by applying...
- When a ceiling fan is switched on, it makes 10 revolutions in the first 3 seconds. Assuming a uniform angular acceleration, how...
- A constant torque of 1000 N-m turns a wheel of moment of inertia 200 kg-m² about an axis through its centre. Its angular velocity...
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