Physics question and answers for April 25, 2024
- Q EX 1 A uniform rod of length 4 m weighs 50 N 1m of the rod lies on a horizontal table and the rest lies over the edge Where does...
- Q 5 A particle is kept fixed on a turntable rotating uniformly As seen from the ground the particle goes in a circle its speed is 20 cm s and acceleration...
- Q A plastic circular disc of radius R is placed on a thin oil film spread over a flat horizontal surface The torque required to spin the disc about its central...
- Q 136 A tangential force Facts at the top of at spherical shell of mass m and radius R 1 acceleration of the shell if it rolls with slipping is 1...
- Q A uniform 255 N rod that is 2 10 m long carries a 225 N weight at its right end and an unknown weight W toward the left end Figure...
- Q inertia about a line perpendicular to the plane of the wire passing through the centre is ML T 1 ML 2 2 ML 5 T 1 ML T Question Type...
- Q 4 3 A cubical block of side L rests on a rough horizontal surface with coefficient of friction u A horizontal force F is applied on the block as shown...
- Q R 39 st 39 A homogeneous sphere of radius R 10 cm rotating about its vertical diameter is gently released on a hole of radius r 8 0 cm made...
- Q Two thin circular discs of mass m and 4m having radii of a and 2a respectively are rigidly fixed by a massless rigid rod of length 1 24a through their...
- Q Two objects a ring and a spherical shell of same mass and radius are released from the top of two identical inclined planes If they are rolling without slipping then...
- Q A B 18 A uniform beam of weight W is attached to a wall by a pivot at one end and is held horizontal by a cable attached to the...
- Q A uniform rod of mass 1 kg and length L 1 m stands vertical Rod is free to rotate about hinge at B in x y plane only A force...
- Q A solid disc of radius 5 cm rolls without slipping on a horizontal floor as shown with an angular velocity of 3 rad s and angular acceleration of 2 rad...
- Q Paragraph for Questions 11 and 12 The element of a spacecraft with axial mass symmetry and a reaction wheel control system are shown in the figure When the motor exerts...
- Q A light string is wrapped on a cylindrical shell and a fraction of length of string is unwrapped A particle of mass 2M is attached on another end of string...
- Q 3 A circular disc of mass 2 kg and radius 1 3 ft is suspended from its rim Calculate the length of the equivalent simple pendulum which will have same...
- Q CLA A rigid body of mass 0 5 kg at F 21 j k is acted on by the forces F 1 3 2k and F 21 3j k Then...
- Q 3 For the shared area shown in Fig Q3 20 points a Determine the moment of inertia of the shared area about the y axis by using a vertical differential...
- Q Jestion No 33 View in English homogenous cylinder of mass m and radius ris pulled on a horizontal plane by a horizontal force Facting on its centre of mass Assume...
- Q A mass m moves in a circle on a smooth horizontal plane with velocity vo at a radius Ro The mass is attached to string which passes through a smooth...
- Q A bracket is subjected to a coplanar force system as shown in Fig Determine the magnitude and line of action from A of the single resultant of the system If...
- Q 4 A smooth sphere of radius R is made to translate in straight line with a constant acceleration a A particl kept on the top of the sphere is released...
- Q For the tank shown in figure if time of emptying the tank from height of 16m to 4m is t then choose the correct option s y y kx O...
- Q ben to emerge ondbubr Figure shows three equipotential surfaces in the ions Inloq A to ent surrounding of a point charge q If t and to be the distance between...
- Q Four bodies of masses 5 kg 2kg 3 kg 4 kg are respectively placed at position 0 0 0 2 0 0 0 3 0 and 2 2 0 calculate...
- Q wo sources A and B are sounding notes of frequency 660 Hz A listener moves from A to B with a constant elocity u If the speed of sound is...
- Q 32 A boy of mass m is standing on a block of mass M kept on a rough surface When the boy walks from left to right on the block...
- Q Problem 7 20 A uniform sheet of steel is cut into the shape as shown Compute the X and Y co ordinates of the centre of mass of the piece...
- Q B A circular ring having mass M 4 m and radius R is attached to a small smooth ring of mass m kept at point A The ring is threaded...
- Q 12 A 1 6 kg hollow cylinder I 5mr with a radius of 0 25 m is dropped onto the center of a turntable with a rotational inertia of 0...
- Q Find point of application of net force from end B such that rod have same translational and rotational effect 40N A 1 zero 3 4 cm 10cm 4cm 6cm 37...
- Q 2 A mosquito is sitting on an L P record disc rotating on a turn table at 33 revolutions per minute The distance of the mosquito from the centre of...
- Q 2 The moment of inertia of a uniform circular disc about a tangent in its own plane is 5 4MR where M is the mass and R is the radius...
- Q 10 A sphere and a disc of same radii and mass are rolling on an inclined plane without slipping a a are acceleration and g is acceleration due to gravity...
- Q A wheel is rolling along the ground with a speed of 2 m s The magnitude of the linear velocity of the points at the extermities of the horizontal diameter...
- Q Find out the angular velocity of the pulley of mass 6 kg and radius 1 m at the instant the block B stirkes the ground MA 2kg MB 5kg H...
- Q A solid spherical ball of radius R collides with a rough horizontal surface as shown in figure At the time of collision its velocity is vo at an angle 9...
- Q Four equal and parallel forces are acting on a rod as shown in figure at distances of 20 cm 40 cm 60 cm and 80 cm respectively from one end...
- Q Illustration 3 4 Two beads each of mass m are welded at the ends of two light rigid rods each of length 7 if the pivots are smooth find the...
- Q A system of two identical rods L shaped of mass m and length I are resting on a peg P as shown in the figure If the system is displaced...
- Q The pulley shown has radius 20 cm MOI 0 2 kg N Spring used has force constant 50 N m The system is released from fest Find the velocity of...
- Q Example 2 Radius of gyration of a body about an axis at a distance of 8 cm from its centre of mass is 10 cm Find its radius of gyration...
- Q An annular ring with inner and outer radii R and R is rolling without slipping with a uniform angular speed The ratio of the forces experienced by the two particles...
- Q 3 A uniform metre stick of mass M is hinged at one end and supported in a horizontal direction by a string attached to the other end What should be...
- Q A rod of mass M is hinged at A on a smooth horizontal surface and can rotate about A without friction A particle of mass m moving on the horizontal...
- Q 3 4 12 45 anti clockwise 9 A wheel of perimeter 4 m is rolling on a horizontal surface The displacement of the point of contact of wheel and ground...
- Q 38 A disc of mass M and radius R starts falling down as shown in the figure The string unwinds without slipping on the disc The instantaneous power developed by...
- Q A solid sphere of mass M radius R and having moment of inertia about an axis passing through the centre of mass as I is recast into a disc of...
- Q A round uniform body of radius R mass M and moment of inertia I rolls down without slipping an inclined plane making an angle 0 with the horizontal Then its...
- Q A uniform wooden stick of mass 1 6 kg and length rests in an inclined manner on a smooth vertical wall of height h such that a small portion of...
- Q 7 1999 A smooth sphere A is moving on a frictionless horizontal plane with angular speed and centre of mass velocity v It collides elastically and head on with an...
- Q Two boys A and B of masses 60 kg and 40 kg are standing on a smooth ground at points P and Q of co ordinates 10 0 0 and...
- Q A ball of mass 160 g is thrown up at an angle of 60 to the horizontal at a speed of 10 m s The angular momentum of the ball...
- Q 28 Two wheels are connected by a belt The radius of the larger wheel is three times that of the smaller one What is the ratio of the moment of...
- Q 6 A person with outstretched arms is spinning on a rotating stool He suddenly brings his arms down to his sides Which of the following is true about his kinetic...
- Q of Particles and Rotational Motion On a rough horizontal surface a cubical block of side a and mass m is projected horizontally The torque on the block about its centre...
- Q A particle is moving along a straight line parallel to x axis with constant velocity Its angular momentum about the origin a decreases with time c remains constant b increases...
- Q 6 Consider a body shown in figure consisting two identical balls each of mass M connected by a light rigid rod If an impulse J Mv is imparted to the...
- Q direction by a cue at a height n t we use 1 m vo LIw 2 centre acquired a linear velocity vo The angular velo o acquired by the ball...
- Q 4 3 6 2 A uniform triangular plate of mass M whose vertices are ABC has lengths 2 2 figure Find the moment of inertia of this plate about an...
- Q The moment of inertia of a hollow cubical box of mass M and side a about an axis passing through the centres of two opposite faces is equal to B...
- Q Illustration 59 A horizontal force F acts on a sphere of mass M at its centre as shown Coefficient of friction between the ground and the sphere is What is...
- Q a mo a b mwa A particle of mass m rotates in a circle of radius a with a uniform angular speed o It is viewed from a frame c...
- Q The end A of a uniform rod AB of length l touches a horizontal smooth fixed surface Initially the rod makes an angle of 30 with the vertical Find the...
- Q A rod and a block are of same mass Initially rod is in horizontal position What will be acceleration of tip of the rod just after the system is released...
- Q by 10m Answer 500J 3 A small cylinder starts from rest from top of large cylinder At what angle with the vertical does it lose contact with the cylinder Answer...
- Q upon by upward parallel forces of 2 N and 4 N at ends A and B respectively The total length of the rod AB 3 m To keep the rod...
- Q 4 A rod of length L is hinged from one end It is brought to a horizontal position and released The angular velocity of the rod when it is in...
- Q A wheel of radius R is placed on ground and its contact point is P If wheel starts rolling without slipping and completes half a revolution find the displacement of...
- Q 19 A metallic ring of mass 1 kg has moment of inertia 1 kg m when rotating about one of its diameters It is molten and remoulded into a thin...
- Q Two identical wheels each of radius R are harnessed by connecting their azles with a rigid rod and pivotally connecting midpoints of two parallel spokes with a bar A box...
- Q 7 A ring of mass 2n kg and of radius 0 25 m is making 300 rpm about an axis through its to its plane The tension in newton developed...
- Q An impulse J is applied on a ring of mass m 3 along a line passing through its centre O The ring is placed on a rough horizontal surface The...
- Q A plank of length 2L leans against a vertical wall It starts to slip downward without friction The top of the plank loses contact with the wall when it is...
- Q e I C Figure II 14 A uniform square plate is placed on a horizontal floor When it is given an angular velocity about a vertical axis through one of...
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