Physics question and answers for June 20, 2024
- Q 012 10 0 points It takes 2 84 J of work to stretch a Hooke s law spring 5 58 cm from its unstressed length How much the extra work...
- Q 1 2 Given graph is a plot of magnitude of normal limiting friction kinetic friction and static friction versus angle of inclination 0 for the coin lying on book 17...
- Q For what value of P the point 1 1 2 3 and P 2 will form an isosceles right angled triangle Pfag farg 1 1 2 3 3 P 2...
- Q A block of mass 1 kg is found to be moving with velocity 10j m sec on rough horizontal surfac xy plane u 0 2 which is also moving with...
- Q Section 1 Straight Objective Type This section contains 5 multiple choice questions Each question has 4 choices a b c and d out of which ONLY ONE is correct 1...
- Q A circular tube of mass M is placed vertically on a horizontal surface as shown in the figure Two small spheres each of mass m just fit in the tube...
- Q c 6 ms 2 d 8 m s 53 A block of mass 1 kg lies on a horizontal surface in a truck The coefficient of static friction between the...
- Q a 10 N b 5 N c 2 5 N d 20 N a c 54 A block of mass 2 kg rest on a plane inclined at an angle...
- Q c T m d 0 74 The mass of a bicycle rider along with the bicycle is 100 kg He wants to cross over a circular turn of radius 100...
- Q a 10 3 N b 23 8 N c A block of mass M is held against a rough vertical wall by pressing it with a finger If the coefficient...
- Q 3 a b Three charges Q each are kept at corners of an equilateral triangle and another charge q is kept at its centre as shown The ratio of q...
- Q m 20 kg m Find the acceleration of m and m for the following figures a and b When 6 m m 30kg F 160 N F 30 kg m...
- Q 18 Figure given along side shows a block pressed against a rough vertical wall with a force F as shown in side view Column I shows angle at which force...
- Q A horizontal force is applied on a wedge which is kept on a horizontal surface as shown in the figure case i force is such that m is at rest...
- Q ra 2 1 Two blocks A and B attached to each other by a massless 2 spring are kept on a rough horizontal surface 0 1 and pulled by a...
- Q A uniform ring of mass m is placed on a rough horizontal fixed surface as shown in the figure The coefficient of friction between the left part of the ring...
- Q A racing car moving towards a cliff sounds its horn The driver observes that the sound reflected form the cliff has a pitch one octave higher than the actual sound...
- Q The value of coefficient of friction is lowered on wetting the surface Assertion It is difficult to move a cycle along the road with its brakes on Reason Sliding friction...
- Q A block has mass of 5 kg and is released from rest at the top of a frictionless slide It then enters a region with friction and comes to a...
- Q nless Two masses m 5kg and m 10kg connected by an inextensibl pulley are moving as shown in the figure The coefficient of friction of horizontal surface is 0 15...
- Q In the arrangement shown W 200 N W 100 N and 0 25 for all surfaces in contact The work W just slide under the block W2 A a pull...
- Q SolveLancer Test A block is tied to a string and placed on a table as shown The table is pulled from below at a constant speed of 1 m s...
- Q 22 A block of mass m 0 1 kg is released from a height of 4m on a curved smooth surface On the horizontal surface path AB is smooth and...
- Q Q10 A body of mass m is kept on a rough horizontal surface coefficient of friction A horizontal force is applied on the body but it does not move The...
- Q Q12 A block of 10 kg mass is placed on a rough inclined surface as shown in figure The acceleration of the block will be 10 kg 30 mm a...
- Q Q5 The coefficient of static friction us between block A of mass 2 kg and the table as shown in the figure is 0 2 What would be the maximum...
- Q A particle mass m moves on a rough horizontal ground with some initial velocity say vo If 3 4 th of its kinetic energy is lost due to friction in...
- Q 17 A block is kept on a rough horizontal plank The coefficient of friction between the block and the plank is The plank is undergoing SHM of angular 2 frequency...
- Q Consider a solid sphere placed on an inclined plane The friction coefficient between the plane and the sphere is For which of the following cases will the friction acting on...
- Q A cylindrical vessel filled with water is released on an inclined surface of angle 0 as shown in figure The friction coefficient of surface with vessel is u tan 0...
- Q a The forces 20 N 30N 40N 50N and 60N are acting at one of the angular points of a regular hexagon towards the other five angular points taken in...
- Q a A block weighing 1500 N overlying a 10 wedge on a horizontal floor and leaning against a vertical wall is to be raised by applying a horizontal force to...
- Q If mass of the fissionable material is less than the critical mass then Question Type Single Correct Type 1 2 3 4 fission and chain reaction both are impossible fission...
- Q A block of mass 5 kg has given horizontal 41 velocity 31 41 m sec over rough horizontal surface along surface If coefficient of kinetic friction of surface is k...
- Q meter and mass m 4 kg lies on the horizontal table Coefficient of friction between the rod and the table is 2 If the current in the conductor is 2...
- Q A slab of mass m 30 kg is kept over a smooth horizontal surface above which a block of mass m 10 kg has been kept as shown The coefficient...
- Q A 20 kg box is gently placed on a rough inclined plane of inclination 30 with horizontal The coefficient of sliding friction between the box and the plane is 0...
- Q 1 54 A charge q is placed at the centre of the line joining two equal charges Q The system of the three charges will be in equilibrium ifq is...
- Q Two blocks of masses m and 2m are placed one over the other as shown in the figure The coefficient of friction between m and 2m is u and between...
- Q A solid cylinder of mass m and radius r is rolling on a rough inclined plane of inclination 0 coefficient of friction between the cylinder and incline is Then 2...
- Q A box weighing 6 kg is being pulled with an acceleration of 0 5 m s over a rough surface with the help of a string as shown in the...
- Q A block of 200 kg mass rests on a rough horizontal plane Find the force required each of the following cases i to just pull the block by a horizontal...
- Q Pull 53 0 2 20 m 1 50 m A worker wants to turn over a uniform 1270 NN rectangular crate by pulling at 53 0 on one of its...
- Q A 29 A spring is cut into two parts in S length Find the stiffness constant of smaller part if stiffness constant of original spring is K 1 10K 2...
- Q In the arrangement shown in the figure sin 37 3 5 0 7 37 10 kg 4kg 1 direction of force of friction is up the plane 2 the magnitude...
- Q 4 4 m sec Block A of mass 35 kg is resting on a friction floor Another block B of mass 7 kg is res on it as shown in...
- Q A 40 kg slab rests on a frictionless floor as shown in the figure A 10 kg block rests on the top of the slab The static coefficient of friction...
- Q 9 The system is pushed by a force F as shown in the figure All surfaces are smooth except between B and C Friction coefficient between B and C is...
- Q AP eSAT X 0 m 0 P A 0 40 m B 1 0 m C 2 5 m D 10 m 0 20 13 A block slides from rest...
- Q s Calculate the contact force acting on the mass m 7 8 15 placed over the inclined plane of friction co efficient 0 5 as shown M O S ontact...
- Q A solid cylinder of mass m is wrapped with an inextensible light string and is placed o a rough inclined plane as shown in the figure The frictional force acting...
- Q 5 43 6 A motor car running at the rate of 7 ms 1 can be stopped by applying brakes in 10 m Show that total resistance to the motion...
- Q Q9 For the figure shown mA 10 kg mB 15 kg and F 90 N Acceleration of blocks A and B respectively H 0 4 A B H 0 2...
- Q In the diagram the variation of coefficient of friction of the surface is shown The external force F applied on board is equal to 2 Mg Now the board of...
- Q 39 When a bicycle is pedalled the force of friction exerted by the ground on the two wheels is such that it acts In the backward direction on the front...
- Q A train weighing 1000 ton is moving on a horizontal track with a uniform velocity of 10 m s The total resistance to the motion of the train is 5...
- Q 2 11 A body of mass 5 x 10 3 kg is launched up on a rough inclined plane making an angle of 30 with the horizontal Obtain the coefficient...
- Q Exp 32 A block B is pushed momentarily along a horizontal surface with an initial velocity v If u is the coefficient of sliding friction between B and the surface...
- Q Attempting to slide it across the floor you exert a horizontal pushing force P at a height y above the floor as in the figure If y is too large...
- Q 444 k A force is applied on the block in downward direction which increases very slowly When this force becomes F the spring breaks What should be the value of...
- Q stopped 12 ed a area of surfac normal reaction 3 c direction of applied force 1x x x d none of the above 206 The static friction is to he...
- Q 219 A box is placed on an inclined plane and has to be pushed down The angle of inclination is a equal to angle of friction b more than angle...
- Q 62 A constant force F has been applied upon the plank of mass M Upon plank a thin circular wheel of mass m and radius R has been placed There...
- Q A body of mass 1 kg rests on a horizontal floor with which it has a coefficient of static 1 13 It is desired to make the body move by...
- Q Two blocks A and B of masses m 1 kg and mB 3 kgare kept on the table as shown in figure The coefficient of friction between A and B...
- Q c 2n 230 A lift is moving upwards with a uniform velocity vi a block of mass m is lying The frictional force offered by the block when coefficient of...
- Q A mass m on the surface of the Earth is shifted to a target equal to the radius of the Earth If R is the radius and M is the...
- Q Q 20 Moderate 0 75 4 1 00 23 O 000 A bullet of mass 0 02 kg travelling horizontally with velocity 250 ms strikes a block of wood of...
- Q 33 A time varying force is applied on a block placed over a rough surface as shown in figure Let 0 be the angle between net contact force on the...
- Q 39 A force F t 13 block A as shown in figure The force is applied at t 0 seconds when the system was at rest and string is just...
- Q Determine the work done by the frictional force in drawing a circle of radius 2R by a pen of negligible mass with a normal pressing force N Consider coefficient of...
- Q 34 In the figure two blocks are given velocities as shown The lower block is very long Find velocities of both the blocks when relative motion between them is ceased...
- Q A 4 kg box is pulled along a horizontal surface uk 0 23 by a light and inelastic rope over a light and frictionless pulley by a 3 kg hanging...
- Q For a system to be in equilibrium the torques acting on it must balance This is true only if the torques are taken about The centre of the system The...
- Q 121 A body of mass m was slowly hauled up the hill Fig 1 29 by a force F which at each point was directed along a tangent to the...
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