Physics question and answers for April 29, 2024
- Q QA solid sphere of mass M and radius R rolls without slipping on a rough horizontal surface with centre of mass velocity v What is the angular momentum of the...
- Q A smooth uniform rod of length L and mass M has two identical beads of negligible size each of mass m which can slide freely along the rod Initially the...
- Q Example 5 Two 100 g blocks hang at the ends of a light flexible cord passing over a small frictionless pulley A 40 block rests on the block on right...
- Q 25 A small disc of mass m placed on a plane of inclination 0 cos 0 8 with the horizontal is connected from a nail driven into the plane with...
- Q We have got two vertical track of equal radius One is smooth and other is rough One small solid sphere is to be projected from the bottom of the circular...
- Q A body is rolling down an inclined plane without slipping If kinetic energy of rotation is 40 of kinetic energy of translation then the body is O ring O cylinder...
- Q The axis of rotation of a purely rotating body 1 Must pass through the centre of mass 2 May pass through the centre of mass 3 Must pass through a...
- Q C 28 The shortest distance of a planet from the sun is r and in this position its speed is v What is the speed of the planet when it...
- Q A string wrapped on a pulley of moment of inertia T Other end of the string is connected to block of mass m as shown If m is released from...
- Q 7 A rod AB of mass M and length L is lying on smooth horizontal surface A particle of mass m travelling along the surface hits the end A of...
- Q QA uniform disc rotating at a constant speed in a vertical plane about a fixed horizontal axis passing through the centre of the disc A piece of disc from its...
- Q Pin A weighing 300 g slides along the fixed horizontal guide as the arm OB rotates about O If 0 0 3 rad s and 0 0 5 rad s2...
- Q A cord is wound around the circumference of wheel of radius r The axis of the wheel is horizontal and the moment of inertia about it is I A weight...
- Q 9 Two solid spheres of different mass radii and density roll down a rough inclined plane under identical situation Their time to come down is independent of their 1 3...
- Q A disc of mass 20 kg 3m radius rotates about its axis with angular speed 100 rad sec What is angular momentum of disc about its axis Question Type Single...
- Q 9 12 A heavy ball is thrown on a rough horizontal surface in such a way that it slides with a speed vo initially without rolling It will roll without...
- Q metal sphere of radius r and specific heat s is rotated about an axis passing through i entre with speed n rotations per second It is suddenly stopped and 50...
- Q circular coil and a disc having same mass roll without slipping on the horizontal with sam near velocity If the total K E of the coil is 12 J then...
- Q ring a disc and a solid sphere have same mass and radius All of them are rolled down on an mclined plane from same height simultaneously The body that will...
- Q Disc of mass m is free to rotate about a vertical axis A man of mass m stands near circumference Radius of disc is R Initially both are at rest...
- Q wheel of moment of inertia 2 kg m is rotating at a speed of 25 rad s Due to friction on t s it comes to rest in 10 minutes...
- Q A thin ring having mass 100 g and radius 10 cm is rotating about its axis with frequency 1 Hz Four objects each of mass 12 5 g are kept...
- Q 37 A floor mat of mass M made up of extensible material is rolled along its length so as to form a cylinder of radius R and kept on a...
- Q RD15 A rod of mass m length is hinged at it s upper end It can rotate in vertical plane It is given angular velocity w so that it can...
- Q A cord is wound round the circumference of wheel of radius r The axis of the wheel is horizotal and moment of inertia about it is I A weight mg...
- Q Angular momentum and its conservation RD16 A uniform ring is rotating about vertical axis with angular velocity o initially A point insect S having the same mass as that of...
- Q Q10 A force F is acting at a on a body distance d from an axis as shown The torque of this force about the given axis is P a...
- Q 0 The magnitude of torque experienced by a square coil of side 12 cm which consists of 25 turns and carries a current 10 A suspended vertically and the normal...
- Q A 3 00kg block is suspended by a string wrapped around a solid disk of radius 10 0cm The mass of the reel is 540 grams a If the block...
- Q A mass is whirled in a circular path with constant angular velocity and its angular momentum is L If the radius of the string is now halved keeping the angular...
- Q From a circular disc of radius R and mass 9M a small disc of R mass M and radius is removed concentrically The moment of inertia of the remaining disc...
- Q A uniform cylinder of mass m and radius R is connected with a spring of stiffness k If the cylinder does not slide on the inclined plane the elongation of...
- Q If angular acceleration of the uniform disc just after release from rest position shown 87g NR in figure is then calculate N C is 2 centre of semi circular disc...
- Q A circular disc of mass 5 kg and radius 1 m rotating with speed 60 rpm about a axis passing through a point on its circumference and lies in the...
- Q A bobbin of mass M 3 kg consists of a central cylinder of radius r 5 cm and two end plates of radius R 6 cm It is placed on...
- Q A house lizard curls its tail in the mid air to land correctly on a vertical wall while jumping from the horizontal floor Physicists have analyzed the Physics involved in...
- Q A thin uniform stick of mass M and length is positioned vertically with its tip on a frictionless table It is released and allowed to fall Determine the speed of...
- Q A solid cylinder of mass 2 kg and radius 50 cm rolls up an inclined plane of angle o inclination 30 The centre of mass of the cylinde has speed...
- Q The moment of inertia of a ring about an axis passing through the centre and perpendicular to it plane is I It is rotating with angular velocity o Another identical...
- Q A student Amir of mass m is standing on the edge of an horizontal disk of radius R The disc is free to rotate about a frictionless vertical axis passing...
- Q Figld massless rod has three particles with equal masses attached to it as shown in figure The rod is free to rotate in a vertical plane about a frictionless axle...
- Q A uniform circular disc rotating at a fixed angular velocity w about an axis normal to its plane and passing through its center has kinetic energy E If the same...
- Q A rod is standing vertically on a smooth surface if the rod is slightly disturbed and it falls towards the right then 1 The center of mass moves vertically downward...
- Q C 36 Initially a slender prismatic bar AB of weight W and length is falling in a vertical plane with velocity ve and without rotation Fig The end B of...
- Q 4 The diagram shows a wheel rolling without slipping along a horizontal road from left to rig A piece of mud on the rim becomes detached at M when the...
- Q A cylinder of mass M is suspended by two strings wrapped around it as shown The acceleration a and the tension T when the cylinder falls and the string unwinds...
- Q A uniform disc of mass m is attached to a spring of spring constant k and friction is sufficient to prevent slipping of disc Time period of small oscillations 2...
- Q A disc of mass M and radius R is rotating about an axis which is lies in the plane of the disc and touching its circumference A hollow cylinder of...
- Q 69 A wheel comprises a ring of radius R and mass M and three spokes of mass m each The moment of inertia of the wheel about its axis is...
- Q molecule consists of two atoms each of mass m and separated by a distance d At room emperature the average rotational kinetic energy is E then its angular frequency is...
- Q The two identical masses m 2 kg are connected by a light rod of length 1 m placed on a smooth surface Another 4 kg mass 1 moving with speed...
- Q A child is standing with his two arms outstretched at the centre of a turntable that is rotating about its central axis with an angular speed wo Now the child...
- Q A uniform rod of mass m length I is hinged at A It is released from the given position so that it rotates about A in vertical plane Which of...
- Q A disc of mass M radius R lies with its centre at a distance a from origin on the x axis Which of the following is correct 1 Moment of...
- Q A standing wave with a frequency of 1100Hz in a column of methane at 27 0 C produces consecutive nodes that are 0 200 m apart What is the approximate...
- Q The total torque about pivot A provided by the forces shown in the figure for L 3 0 m is 70 N 90 N 80 N 60 A 1 210...
- Q of mass m moving with velocity vo hits a stationary thin uniform ring of equal mass m lying horizontally on a smooth horizontal surface tangentially and sticks to it The...
- Q When a 12000 joule of work is done on a flywheel its frequency of rotation increases fro 0Hz to 20Hz The moment of inertia of flywheel about its axis of...
- Q A block of mass M 5 50 kg is connected by a string to a frictionless pulley or radius r 0 330 m and moment of inertial The block accelerates...
- Q A disc of mass m and radius R is given a translation velocity v and angular velocity 0 V R the rough inclined plane with angle of inclination 8 as...
- Q A disc of moment of inertia I is rotating in horizontal plane about an axis passing through a centre and perpendicular to its plane with constant angular speed o Another...
- Q A disk has a moment of inertia of 2 50 x 10 2 kg m2 and spins on a frictionless axis through its center at an initial angular speed of...
- Q PHYSICS NA 5 10 200 W rad s Take g 9 8 m s A one meter long scale is held vertically with one of its ends on a rough...
- Q A uniform disc of mass m and radius r is attached with 5 point masses of mass m on its rim The total moment of inertia of the system is...
- Q 008 10 0 points A weight with a mass of 120 kg is suspended from a point at the right hand end of a uni form boom with a mass...
- Q A small particle of mass m is attached at B to a hoop Ring like of mass m and radius r whole system is placed on the rough horizontal ground...
- Q A square frame ABCD is formed by four identical rods each of mass m and length I Thi Frame is in X Y plane such that side AB coincides with...
- Q Water enters vertically and steadily into a sprinkler shown below and is discharged at a rate of 20 L s through ach nozzle Each nozzle has a discharge area of...
- Q 4 Zero 151 neet prep A ring is rolling without slipping on a horizontal plane with velocity v and acceleration a The acceleration of point of contact is O 1...
- Q 1 90 5 J 3 60 7 J 2 48 J 4 100 8 J As shown in the figure a bob of mass m is tied by a massless...
- Q 2 then of the into a of the own in 2 VA VB VC 3 VA VC VB 4 Vc VA VB 159 A uniform cubical block of side L...
- Q The axis of rotation of a purely rotating body O Must pass through the centre of mass O May pass through the centre of mass O Must pass through a...
- Q 8 A body is in pure rotation The linear speed v of a particle the distance r of the particle from the axis and the angular velocity wo of the...
- Q 4 it moves in a straight line A point P moves in counter clockwise direction on a circular path as shown in the figure The movement of P is such...
- Q 7 A diver in a swimming pool bends his head before diving because it a decreases his moment of inertia b decreases his angular velocity e increases his moment of...
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