Physics question and answers for June 06, 2024
- Q eri 38 A bullet of mass 50 g is fired from below into the bob of mass 450 g of a simple pendulum as shown in Figure The bullet stays...
- Q Find the acceleration of the moon with respect to the earth from the following data Distance between the earth and the moon 3 85 105 km and the time taken...
- Q 5 Let 0 denote the angular displacement of a simple pendulum oscillating in a vertical plane If the mass o the bob is m the tension in the string is...
- Q c 60 2 A body of mass m kg is lifted by a man to a height of h m in 30 s Another man lifts the same mass to...
- Q 4 Two horizontal disks of mass Mhave the radii shown above Disk A is attached to an axle of negligible mass spinning freely with angular velocity Disk B not attached...
- Q 46 In a hypothetical atom potential energy between electron and proton at distance r is given by ke 472 where k is a constant Suppose Bohr theory ils bns betalents...
- Q m Block A is in equilibrium Now block A given velocity V 2 direction Maximum normal reaction on block B is A 3mg C 3mg 2 B 4mg D 2mg...
- Q Figure 8 E14 shows a light rod of length 1 rigidly attached to a small heavy block at one end and a hook at the other end The system is...
- Q To 0 2 x0 A block of mass m is on a rough horizontal surface and is attached to a spring with spring constant k The coefficient of kinetic friction...
- Q Questions 15 17 Leeeee 00 N x0 A block of mass m is on a rough horizontal surface and is attached to a spring with spring constant k The coefficient...
- Q A cord is used to vertically lower an initially stationary block of mass M 50 kg at a constant downward acceleration o g 8 When the block has fallen a...
- Q A block of mass m sliding on a smooth horizontal surfac with a velocity v meets a long horizontal spring fixed a one end and having spring constant k as...
- Q 3 Figure 8 E7 shows a spring fixed at the bottom end of an incline of inclination 37 A small block of mass 2 kg starts slipping down the incline...
- Q 9 A uniform chain of length L and mass M overhangs a horizontal table with its two third part on the table The friction coefficient between the table and the...
- Q 1 A block of mass 5 0 kg is suspended from the end of a vertical spring which is stretched by 10 cm under the load of the block The...
- Q OY A J B 9 J 81 C 1 D 27 J x m 0 1 2 3 4 28 A specially designed spring is stretched from equilibrium to the...
- Q d it mov Consider two observers moving with respect to each other at a speed u along a straight line They observe a block of mass m moving a distance...
- Q 9 One end of a light spring of spring constant k is fixed to a wall and the other end is tied to a block placed o a smooth horizontal...
- Q 7 A block weighing 10 N travels down a smooth curved track AB joined to a rough a rough horizontal surface figure 8 E5 The rough surface has a friction...
- Q A pea is placed on a vertical spring which has a spring constant of 11N m and the spring is compressed 15cm Upon release the spring travels a height of...
- Q 9 Two masses M and M are connected by a light ro and the system is slipping down a rough incline of angle 0 with the horizontal The friction coefficient...
- Q 50 When a certain spring is stretched by an amount x it produces a restoring force of F x ax bx2 where a and b are constants How much work...
- Q You lift a suitcase from the floor and keep it on a tabl The work done by you on the suitcase does not depen on a the path taken by...
- Q 5 An unruly demonstrator lifts a stone of mass 200 from the ground and throws it at his opponent At the time of projection the stone is 150 cm above...
- Q 3 A car weighing 1400 kg is moving at a speed of 54 km h up a hill when the motor stops If it is just able to reach the...
- Q 2 The 200 m free style women s swimming gold medal at Seol Olympic 1988 went to Heike Friendrich of East Germany when she set a new Olympic record of...
- Q 3 The US athlete Florence Griffith Joyner won the 100 m sprint gold medal at Seol Olympic 1988 setting a new Olympic record of 10 54 s Assume that she...
- Q The two particles of mass m and 2m respectively are connected by a light rod of negligible mass and slide with negligible friction on a circular path of radius r...
- Q SolveLancer Test A body of mass 50 gram moves due to external force If the sum of initial and final speed is 20 m s and work done by the...
- Q Zere Mariz 0 In all other cases Engine is used to move a mass of 0 8 kg starting from rest a distance of 2 m in a straight line...
- Q cm sec cm sec 30 30 The string of pendulum of length I is displaced through 90 from the vertical and released Then the minimum strength of the string in...
- Q A person in a sledge total mass of 120 kg slides a frictionless icy stope from a height of 3 50 m The sledge is initially at rest and comes...
- Q 9 A small steel ball falls through a syrup at a constant speed of 1 0 m s If the steel ball is pulled upwards with a force equal to...
- Q A particle m 1 kg slides down a frictionless track AOC starting from rest at a point A height 2 m After reaching C the particle continues to move freely...
- Q The time period of a spring block system is T The spring is cut into two parts with their lengths in ratio 2 3 Now the block is attached to...
- Q 3 A uniform flexible chain of mass m and length 1 hangs in equilibrium over a smooth horizontal pin of negligible diameter One end of the chain is given a...
- Q One end of a uniform wire of length L and of mass M is attached rigidly to a point on the ceiling and a block of mass M is suspended...
- Q A bead is free to move along a fixed and smooth parabolic wire of shape y x Bead H is released from height H from rest when height of bead...
- Q 3 A chain of length 1 and mass m lies on the surface of a smooth sphere of radius R l with one end tied to the top of the...
- Q A body is thrown horizontally from the top of a tower of 5m height It touches the ground at a distance of 10m from the foot of the tower Then...
- Q A pump on the ground floor of a building can pump up water to fill a tank of volume 30 m in 15 min If the tank is 40 m...
- Q A force F of constant magnitude acts on a block of mass m and t 0 initially along positive x direction The direction of force F starts rotating with a...
- Q 8 A small block of mass 100 g is pressed against a horizontal spring fixed at one end to compress the spring through 5 0 cm figure 8 E11 The...
- Q A box weighing 2000 N is to be slowly slid through 20 m on a straight track having friction coefficient 0 2 with the box a Find the work done...
- Q 32 A machine gun of mass 10kg fires 10gm bullets at the rate of two every second Each bullet comes out with a velocity of 200 m s The velocity...
- Q D A person is painting his house walls He stands on a ladder with a bucket containing paint in one hand and a brush in other Suddenly the bucket slips...
- Q of a two particle system depends only on the separation between the two particles The most appropriate choice for the blank space in the above sentence is a Kinetic energy...
- Q D A particle is rotated in a vertical circle by connecting it to a string of length 1 and keeping the other end of the string fixed The minimum speed...
- Q 16 Find the reading of the spring balance shown in figure 5 E6 The elevator is going up with an acceleration of g 10 the pulley and the string are...
- Q 54 A satellite in force free space sweeps stationary interplanetary dust at a rate of dM dt av where M is mass and v is the speed of satellite and...
- Q 24 A system of particles is free from any external force If and a be the velocity and acceleration of the centre of v mass then it necessarily follows that...
- Q 3 Two equal masses are attached to the two ends of a spring of spring constant k The masses are pulled out symmetrically to stretch the spring by a length...
- Q 2 A ball is rolling along a level frictionless surface with a speed v 25 m s when it encounters a ramp that is inclin at 8 28 How far...
- Q D A solid iron sphere A rolls down an inclined plane while the plane in a frictionless manner At the bottom of the an identical hollow sphere B of same...
- Q 4 Stretching a Spring If a force of 80 N is required to hold a spring 0 3 m beyond its unstressed length how much work does it take to...
- Q 88 A force of 14 N acts on a particle along the ve 31 2 6k If the particle displaces from 0 0 0 to 2 4 2 the work...
- Q A collar B of mass 2 kg is constrained to move along a horizontal smooth and fixed circular track of radius 5 m The spring lying in the plane of...
- Q work is done against gravity W m g h 10 x 9 Es x is pulled across a floor by applying a force of 10 0 degrees above the horizontal...
- Q A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20 m along level ground Fig 6 7a The total weight of sled...
- Q the volume of the car Two objects are moving at a speed of 8m sec and 12 m sec respectively If they are on the same surface then the ratio...
- Q 7 A solid sphere of mass M of radius R is moving with speed GM 100 10ms 1 in free space Due to R application of external impulsive force it...
- Q A block of mass 1 0 kg placed on a horizontal floor is attached to a fixed mail with the help of a spring of stiffness 5 0 N cm...
- Q 7 In the setup shown an almost inertia less bar is suspended horizontally with the help of two identical springs each of stiffness k two light inextensible cords that pass...
- Q A particle is released on a vertical smooth semicircular track from point X so that OX makes angle from the vertical see figure The normal reaction of the track on...
- Q Two spherical bodies of mass M and 5M and radii R and 2R respectively are released in free space with initial separation between their centres equal to 12R If they...
- Q The Work Energy theorem A does not hold in all inertial frames Bis independent of Newton s second law C may be viewed as a scalar form of Newton s...
- Q A centigrade and a Fahrenheit thermometer are dipped in boiling water Now the water temperature is lowered untill Fahrenheit thermometer registers 140 The fall in temperature registered by centigrade thermometer...
- Q A particle of mass 2 kg executes SHM under a force F 50x where x is in m and F in N If it crosses the mean position x 0...
- Q A wind powered generator converts wind energy into electrical energy Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electric energy For...
- Q A particle of mass 2 kg is attached with a spring of stiffness 72 N m When block is at x 1m it moves with maximum speed The block moves...
- Q Example 11 2 A porter lifts a luggage of 15 kg from the ground and puts it on his head 1 5 m above the ground Calculate the work done...
- Q A spring of spring constant 5 x 10 N m is stretched initially by 5 cm from the unstretched position Then the work required to stretch is further by another...
- Q If a bullet is fired from a gun then a the mechanical energy of bullet gun system remain constant b the mechanical non mechanical energy is converted into energy C...
- Q A copper block of mass I kg slides down on a rough inclined plane of inclination 37 at a constant speed Find the increase in the temperature of the block...
- Q 3 30J The work done at the end of displacement 20cm according to the F 1 1 J 10 N 5 10 10 mJ 20 50 60 70 3 3...
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