Physics question and answers for May 03, 2024
- Q 19 A ballet dancer spins about a vertical axis at 2 5 radians per second with his both arms outstretched With the arms folded the moment of inertia about the...
- Q 5 A uniform sphere of mass 500 g rolls without slipping on a plane horizontal surface with its centre moving at a speed of 5 00 cm s Its kinetic...
- Q ML A circular disk of moment of inertia I is rotating in a horizontal plane about its symmetry axis with a constant angular speed Another disk of moment of inertia...
- Q A metre stick is held vertically with one end on the floor and is then allowed to fall If the end touching the floor is not allowed to slip the...
- Q A rod of length has length e and mass per unit length linearly increases from A to 2 as shown in figure Rod rotates with constant angular velocity in a...
- Q 25N 30cm 25N a Calculate the torque acting on the wheel due to these forces 4 marks b Explain whether the steering wheel is in equilibrium when subjected to these...
- Q ve 202 rotating about their centre of mass under their mutual gravitational attraction Let us consider such a double star which has two stars of masses m Reduce each at...
- Q Consider the arrangement shown in the figure The pulley is light and the spool has mass M Table is sufficiently rough for pure rolling String is light and inextensible 2R...
- Q A uniform solid cylinder of mass M 3 kg and radius R 10 cm is connected about an axis through the centre of the cylinder to a horizontal spring with...
- Q DA 2 6 points A small steel block of mass M is attached to a rod of mass m and length L whose other end is connected to a hinge...
- Q 2 MR material in K then rise in temperature of the sphere is M I of hollow sphere 3 kg hollow sphere of mass M and radius R is rotating...
- Q Consider the child s playground merry go round wheel If the steel disk has mass of 200 kg a radius of 2 meters and a smooth low friction bearing at...
- Q A uniform disc of mass m and diameter 2 R moves forward towards another uniform disc of mass 2 m diameter 2 R on a frictionless surface as shown in...
- Q A thin hollow cylinder is free to rotate about its geometrical axis It has a mass of 8 kg and a radius of 20 cm A rope is wrapped around...
- Q A hollow straight tube of length 1 and mass m can turn freely about its centre fixed on a smooth horizontal table Another smooth uniform rod of same length and...
- Q A particle of mass m moves with a constant 44 velocity Which of the following statements is not correct about its angular momentum about point O E IC B 1...
- Q 4 0 53 mA A cylinder of mass M and radius r is mounted on 29 a frictionless axle over a well A rope of negligible mass is wrapped around...
- Q A metal cylinder of radius R is placed on a wooden plank BD The plank is kept horizontal suspended with the help of two identical string AB and CD each...
- Q A small mass attached to a string rotates on a frictionless table top as shown If the tension in the string is increased by pulling the string causing the radius...
- Q A disc of mass m and radius R rests on a horizontal smooth as shown in figure Two particle of mass m and 2m moving with velocity V collides in...
- Q A uniform solid cylinder of radius R 15 cm rolls over a horizontal plane passing in to an inclined plane forming an angle a 30 with the horizontal Find the...
- Q A solid sphere is rolling on a surface as shown in figure with a translation velocity v m s If it is to climb the inclined surface continuing to roll...
- Q A thin rod of mass M and length a is free to rotate in horizontal plane about a fixed vertical axis passing through point O A thin circular disc of...
- Q LE CHOICE CORRECT QUESTIONS Consider a uniform square plate of side a and mass m the moment of inertia of this plate about an axis perpendicular to its plane and...
- Q A particle of mass m 5 units is moving with a 3 uniform speed v 3 2 m s in the XOY plane along the line Y X 4 The...
- Q K shown in figure It is attached by an inextensible thread which is being pulled horizontal with constant velocity v Find tangential and normal acceleration as a function of 0...
- Q On the rotating disc A of mass M another disc 15 ME M of same dimension but of mass 4 gently with same axis New angular velocity of system M...
- Q A thin spherical shell rolls down a curved track ABC without slipping At C it leaves the track at a 370 with horizontal The maximum height H reached by the...
- Q A conducting ring of mass 2 kg and radius 0 5 m is placed on a rough horizontal plane surface so that the ring does not slip on the surface...
- Q C B Two uniform rods each of mass m 1kg and length 1m are hinged at B and pivoted at C If a horizontal impulse FAt 7 N s is...
- Q A thin spherical shell of mass M and radius R rolls down with out sliding on a rough inclined plane e the linear acceleration of the shell is 1 g...
- Q Which of the following statements is not correct about the moment of inertia 1 Moment of inertia of a body is not fixed as it changes with the axis of...
- Q Disc A and disc B with a hole have equal mass and radius and a string is wrapped around them as shown Equal force F is applied on the string...
- Q 20 A cavity of radius R 2 is made inside a solid sphere of radius R The centre of the cavity is located a a distance R 2 from the...
- Q A hollow hemisphere rests on a truck as shown in figure The truck begins to accelerate with 2 m s2 Find the initial angular acceleration in rad s2 of the...
- Q A massless rod of length b has one end pivoted and the other end joined perpendicular to the middle of a rod of mass m and length In case i...
- Q Question No 9 a x where x is the distance measured from A and po is a constant Mass A thin uniform rod AB of length a has variable mass...
- Q A wheel of radius r rolls without slipping on a horizontal surface with a constant velocity v The wheel starts its journey at time t 0 from the position shown...
- Q 5 If the perpendicular distance between fixed point and point of application of force increases the moment of force a Increases 6 The SI unit of pressure is a Newton...
- Q A uniform rod of mass mand length is hinged at its one end so that it can rotate freely in a vertical plane If it is released from horizontal position...
- Q 9 A copper ball of mass 100 g is at a temperature T It is dropped in a copper calorimeter of mass 100 g filled with 170 g of water...
- Q Consider two masses each of size 2m at the ends of a light rod of length L with the axis of rotation through the center of the rod The rod...
- Q Question No 33 The angular velocity of the wheel increases from 120 rpm to 300 rpm in 10 s The number of revolutions made during this time is O 25...
- Q 13 A student sits on a rotating stool holding two 3 5 kg masses When his arms are extended horizontally the masses are 1 m from the axis of rotation...
- Q a What is the tangential acceleration of a bug on the rim of a 13 0 in diameter disk if the disk accelerates uniformly from rest to an angular speed...
- Q The torque caused by a force F applied at a distance r from the axis of rotation is given by t rFsin 9 where qis the angle between F and...
- Q Suppose a wheel is initially rotating at 10 0 rad s while undergoing constant angular acceleration reaching a speed of 30 0 rad s after 20 0 seconds have elapsed...
- Q A force of F 4 i 4j 7k lb acts at the point 12 6 5 ft Determine the moment about the point 3 4 1 ft
- Q A 0 30 m radius automobile tire accelerates from rest at a constant 2 0 rad s over a 5 0 s interval What is the tangential component of acceleration...
- Q Check my wor A biologist is studying plant growth in outer space He wants to simulate Earth s gravitational field so he positions the plants on the inside rim of...
- Q 2 A system of forces is shown in the following figure F2 F Z 10 3 9 X 0 3 8 12 a Y a Express F and F2 in...
- Q 10 37 Determine the moment of inertia I of the shaded area about the y axis 6 in y 6 in 3 in 6 in X
- Q A coat hanger of mass m 0 216 kg oscillates on a peg as a physical pendulum as shown in the figure below The distance from the pivot to the...
- Q Babe Ruth steps to the plate and casually points to eft center field to indicate the location of his next ome run The mighty Babe holds his bat across is...
- Q 2 What is the moment of inertia of a uniform solid cylinder about its central axis of diameter d 0 190 m and total mass M 1 65 kg Show...
- Q Problem 1 Using the perpendicular distance method to the line of action of the force Calculate the moments at A B and C 30 KN 1 75 10 K 75...
- Q ct Answer Trapeze Near the surface of the Earth a trapeze consists of a rod with length L and negligible mass supported at its ends by vertical ropes of equal...
- Q C R r A thin rod of mass m and length is hinged to a ceiling and it is free to rotate in a vertical plane A particle of mass...
- Q moo 192 A solid sphere is placed on a surface An impulse of short duration is applied horizontally at a distance y from centre as shown For pure rolling motion...
- Q Paragraph Question Nos 47 to 50 There is a uniform bar of mass m and length hinged at centre so that it can turn in a vertical plane about a...
- Q 177 Particles A and B are separated by 10 m A is at rest and B started moving with a speed 20 m s as shown in figure Angular velocity...
- Q 83 A hollow sphere having mass m and radius moving as shown in the figure If the speed of centre of mass of sphere is v and angular speed Vo...
- Q 134 Moment of inertia of a thin uniform rod of length and mass m about an axis passing through a 1 from centre O and at an point at a...
- Q Two uniform rods each of mass m 1kg and length 1m are hinged at B and pivoted at C If a horizontal impulse FAt 7 N s is applied to...
- Q 11 A spool of mass M inner radius R and outer radius 2R is released from rest from the position as shown in figure If moment of inertia of spool...
- Q block of side L rests on a rough M A horizontal surface with coefficient of friction horizontal force F is applied on a block as shown If there is sufficient...
- Q is r If there is no slipping of string over the pulley ia and its radius then acceleration of the block of mass m is 1 g mg 2 m...
- Q 60 A disc is set into pure rolling Let us taken three points on the disc as shown in figure Then VB VC VD is VB VC and v are...
- Q 3 t 10 A particle of mass m is moving on x y plane with constant velocity in a circle of radius R as shown in figure Then its angular...
- Q 34 Four rods of mass M and length are joined at the point O Find the moment of inertia of the system about axis of rotation AA shown here 1...
- Q 3 4 2 4 A solid sphere a disc and a cylinder are kept on the top of a smooth inclined plane If they are allowed to fall along inclined...
- Q 916 20 55 A solid sphere is rolling up on an incline If it is thrown in upward direction with some initial angular velocity and its motion is pure rolling...
- Q 34 Four masses are joined to a light circular frames in the figure The radius of gyration of this system about an axis passing through the centre of the circular...
- Q solid sphere of mass M and radius R The sphere is on rough horizontal surface and there is no slipping What is acceleration of centre of mass of sphere X...
- Q 79 A uniform rod having length is hinged at one end and is free to rotate in vertical plane The rod is released from the position making angle 0 with...
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