Physics question and answers for June 22, 2024
- Q 3 A child is swinging on a swing Minimum and 38 maximum heights of swing from earth s surface are 0 75 m and 2 m respectively The maximum velocity...
- Q 3 Two blocks of mass m of mass m 3 kg and m kg connected by a light inextensible string which pas over a smooth peg The peg is fixed...
- Q A pendulum of length is free to oscillate in vertical plane about point O An observer is viewing the bob directly from above The pendulum is performing small oscillations in...
- Q Mark the incorrect statement about the friction between two bodies 1 Static friction is always greater than the kinetic friction 2 Coefficient of static friction is always greater than the...
- Q 1 A 2 B 3 C 4 D 14 The blocks are in equilibrium The friction force action on 10 kg block is boks 0 5 1 10 N down...
- Q Mg sin 1 sin 0 3 A block is projected with speed 20 m s or rough horizontal surface The coefficient friction between the surfaces varies w time t as...
- Q In the figure shown horizontal force F is applied on a block but the block does not slide Then as the magnitude of vertical force F is increased from zero...
- Q 3 Two blocks A and B of masses 5 kg and 3 k respectively rest on a smooth horizontal surfac with B over A The coefficient of friction A an...
- Q 4 The materials of the bodies A horizontal force 10 N is necessary to just hold a block stationary against a wall The coefficient of friction between the block and...
- Q A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box She pulls with a force of 135 0...
- Q ER ENSTREDIE 16 A girl horizontally press her physics text book against a rough vertical wall with her hand The direction of the frictional force on the book exerted by...
- Q 15 A body takes time t to reach the bottom of a inclined plane of angle 0 with the horizontal I the plane is made rough time taken now is...
- Q A car having mass m is moving on a ro surface with momentum P If coefficien friction between tyres of car and road is u then distance covered by car...
- Q Graph shows the relation between force applied and friction force acting on a block of mass 10 kg placed on a rough horizontal surface If coefficient of static friction is...
- Q tan 0 1 tan 0 1 Consider the situation as shown T maximum value of force F such that the blan does not move 1 5 N 3 15 N...
- Q 2 5 A chain of mass M and length L is put on a rough horizontal surface and is pulled by constant horizontal force F as shown in figure Velocity...
- Q Two blocks of masses 2 kg and 1 kg are conected and are at rest on a rough floor as shown in the figure with different coefficients of friction A...
- Q The body of mass m 0 5 kg is held on a vertical wall by a force F of 15 N as shown in the figure is applied on the...
- Q A force F 2t where t is time in seconds is applied at t 0 sec to the block of mass m placed on a rough horizontal surface The coefficient...
- Q The value of frictional force and acceleration of block of mass 10 kg in the figure are 10 kg 0 4 60 Question Type Single Correct Type 1 10 N...
- Q 4 Clamping the rod at B and applying a force F at A perpendicular to rod A solid cylinder is rolling up without sliding on a rough inclined plane The...
- Q A variable force 5t N is applied on a block as shown in figure where t is time in second If coefficient of 1 then find the time in sec...
- Q A constant horizontal force F is acting on block A as shown in the figure Friction between A horizontal surface is negligible But friction is present between A B Contact...
- Q Paragraph for Question No 5 to 7 A small block B of mass 10 kg is placed on a 6 m long plank A of mass 20 kg which is...
- Q 3 31 In the given circuit the switch is closed at t 0 The ratio of electric current through resistance R at t 0 and at t is 3 3...
- Q A horizontal force F is applied on block B as shown in the figure Now m 5 kg mg 15 kg H 0 3 0 1 Ms 0 5 0...
- Q The angle between two vectors R 1 k and S xi 3j x 1 k A Is obtuse angle C Lies between 60 and 120 B Is acute angle D...
- Q A block of mass m is initially at rest on horizontal floor having static friction coefficient us and kinetic friction coefficient is uk If F is the minimum force required...
- Q A block is given a initial push along rough horizontal fixed table surface and after some time it stops due to friction For the system of block and table Question...
- Q In the figure shown a hemisphere is moving in the right direction with uniform velocity Vo and the end of rod in contact with ground is moving towards left with...
- Q A resultant force of magnitude 74 6 N acts on an object causing it to accelerate with a magnitude of 1 40 m s2 What is the mass of the...
- Q A block of mass 1 kg is placed on a board The board is then slowly lifted at one end What is the maximum angle in units of degrees to...
- Q The coefficient of viscosity n of a liquid is defined as the tangential force on a layer in that liquid per unit area per unit velocity gradient across it Then...
- Q COA given object takes n times as much time to down a 45 rough incline as it takes to slide down a B perfectly smooth 45 incline The coefficient of...
- Q A box A is lying on the horizontal floor of the compartment of a train running along horizontal rails from left to right At time t the train decelerates Then...
- Q A rod supported on the wall starts slipping down If th speed VA of upper end A is 5 m s then the speed VB wit which end B will...
- Q One or more than one correct answer 19 A force F acts on the block so as to slide it on the rough horizontal floor It is impossible to push...
- Q A block of mass m is in contact with the cart C as shown in the figure C The coefficient of static friction between the block and the cart is...
- Q In the given figure the coefficient of friction between the two blocks is u and all other surface is smooth Find the minimum value ofF which will prevent slipping F...
- Q 8 On the horizontal surface of a truck u 0 6 a block c mass 1 kg is placed If the truck is accelerating at the rat of 5m sec...
- Q 4 3g s 12 A piece of wire is bent in the shape of a parabola y kx y axis vertical with a bead of mass m on it The...
- Q A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1 5 m and 6 0 m res pectively below the free surface...
- Q 2 29 A cubical block of mass 6 kg and side 16 1 cm is placed on frictionless horizontal surface It is hit by a cue at the top as...
- Q A mass m hanging at the end of the string draws a mass m along the surface of a smooth table if the mass on the table be doubled the...
- Q A block of mass 10 kg is placed on an inclined plane When the angle of inclination is 30 the block just begins to slide down the plane The force...
- Q Consider following arrangement of three blocks A B and C Mass of the each block is 1 kg The coefficient of friction between any two blocks is 0 2 There...
- Q If the friction between the two blocks is 9N and ground is perfectly smooth then the maximum force which can be applied to the block of mass 2kg to present...
- Q The coefficient of friction between the block A of mass m and wedge B of mass 2m is The inclined plane is smooth If the system of blocks A and...
- Q Length AB in figure shown is 5 m The body is released from A friction is sufficient for pure rolling to take place The maximum time which rolling body can...
- Q A marble block of mass 2 kg lying on long horizontal ice slab When given a velocity of 6 ms it is stopped by friction in 10 seconds Then the...
- Q What minimum force F is needed to start body A moving to the right if us 0 25 for all surfaces The following weights are given WA 125 N WB...
- Q 6 Block A has a mass of 2 kg and block B has 20 kg If the coefficient of kinetic friction between block B and the horizontal surface is 0...
- Q 2 20 A racing car moving towards a cliff sounds its horn The sound reflected from the cliff has a pitch one octave higher than the actual sound of the...
- Q Two masses m 10 kg and m 5 kg are connected by an ideal string as shown in the figure The coefficient of friction between m and the surface is...
- Q A body is sliding down a rough inclined plane which makes an angle 30 with the horizontal The co efficient of the friction between the surface of contact of the...
- Q One end of a heavy rod AB can slide along a rough fixed horizontal rod CD which it is attached by a ring B and C are bined by a...
- Q It is found that on certain smooth inclined plane of angle 30 with horizontal a minimum force of 10 N is required to start a body up when applied parallel...
- Q A block is placed on a rough plank moving with velocity 3 and velocity of block relative to plank is 31 4j find direction of kinetic friction force acting on...
- Q Max m SECTION 1 Answer all questions max marks 20 assume g 10 m s If required 1 A straight line represents uniform velocity acceleration in the distance time velocity...
- Q A block of mass 6 kg is lying on a rough horizontal surface The angles of limiting and kinetic frictions are 53 and 37 respectively A horizontal force enough to...
- Q A smooth plane of certain length is held at an angle 300 with the horizontal A rough plane of same length is held at an angle 45 A body released...
- Q In the shown figure all surfaces are rough Block B is attached with a load of mass 6m through an ideal string passing over an ideal pulley Coefficient of friction...
- Q 30 A light block P on a horizontal tabletop placed equidistant from the pulleys supports a load with the help of a cord as shown in the figure If the...
- Q Two blocks A and B of masses m and 2m are initially at rest Length of block B is L and block A is placed at the right end comer...
- Q At a construction site an iron rod of mass 2 kg and length 1m is kept resting on a vertical wall and horizontal floor as shown in the image Find...
- Q A 2 kg block is gently pushed from rest at A and it slides down along the fixed smooth circular surface If the attached spring has a force constant k...
- Q N 8 ND 22 A force of 20 N along the line of the greatest slope is required to slide a block upwards with constant speed and a force of...
- Q ons 42 to 44 are based on the following physical situation A horizontal conveyor belt is running at a constant speed u 3 0 m s A small disc enters...
- Q Starting from rest a body slides down a 37 in clined plane in thrice the time it takes to slide down the same distance in the absence of friction The...
- Q A block of mass m is placed over a plank of m M M m which rests on a smooth inclined plane as shown in figure If the coefficient of...
- Q 1 The coefficient of friction between a plane inclined at 60 and a body of mass 100 g kept on that plane is What minimum force should be applied along...
- Q Q 6 The coefficient of static friction between a car s tires and a level road is 0 80 If the car is to be stopped in a maximum time...
- Q 27 A small block is kept on an inclined plane of adjustable inclination Coefficients of static and kinetic frictions between the block and the plane are and respectively The angle...
- Q MT 2010 A block of mass m is in contact with the cart C as shown in the figure The coefficient of static friction between the block and the cart...
- Q Two blocks of masses mi and my connected by a spring of spring constant k are kept on a plank which in turn is kept over a frictionless horizontal surface...
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