Physics question and answers for June 21, 2024
- Q 34 An object takes 1 second to slide down a rough 45 inclined plane The time taken to slide down a smooth 30 inclined plane having the same slope length...
- Q 39 A block of mass 2 kg is pushed against a rough vertical wall with a force of 40 N coefficient of static friction being 0 5 Another horizontal force...
- Q 3 An aeroplane requires a speed of 72 kmph for a take off with 150m run on the ground The mass of the plane is 1500kg and the coefficient of...
- Q In the arrangement shown system consisting of a wedge and block A is slipping down the incline The direction of pseudo force acting on A in frame of wedge is...
- Q 2 2 4 6 10 12 14 16 t s 8 Fig 5 17 Figure 5 18 shows a man standing stationary with respect to a horizontal conveyor belt that...
- Q In the figure shown a ring of mass M and a block of mass m are in equilibrium The string is light and pulley P does not offer any friction...
- Q A block of mass 2kg is placed on the floor The coefficient of static friction is 0 4 Horizontal force of 2 8N is applied on the block The force...
- Q All surfaces are assumed to be frictionless Calculate the horizontal force F that must be applied so that m and m2 do not move relative to m3 is 1 2...
- Q 2 The coefficient of friction between a plane inclined at 60 and that plane is plane is What mini a body of mass 100 g kept on that mum force...
- Q ation 11 60 BOTANY 165 23 12 17 18 24 29 30 Acceleration of the block A as shown in the figure will be all surfaces are smooth F 100...
- Q a on two inclined plane as shown in the figure 45 smooth 1 1 2 2 3 1 5 4 0 8 K 28 45 Ma rough 0 5 TT...
- Q 2 6 Two blocks of mass 2 kg and 3 kg are kept on level ground having coefficient of static friction 0 3 and 0 4 respectively from ground The...
- Q Two equal electric currents are flowing perpendicular to each other as shown in the figure AB and CD are perpendicular to each other and symmetrically placed with respect to the...
- Q 22 The co efficient of friction between a chain a table is m If a chain is placed on a horizontal table so that a part of it is hanging...
- Q 30 A block of mass m is placed on the top of another block of mass M as shown in figure The co efficient of friction between them is the...
- Q 20 The distance travelled by a body before coming to rest if it is moving on a rough surface with a velocity 18kmph and the coeffcient of friction between the...
- Q A body of mass m slides down a smooth inclined plane having an inclination of 45 with the horizontal It takes 2s to reach the bottom If the body is...
- Q N 4 mg Since the floor is rough it exerts both a normal force N and a frictional force f on the ladder However since the wall frictionless it exerts...
- Q Boxes A and B are sliding to the right across a frictionless table The hand His slowing them down The mass of A is larger than the mass of B...
- Q A force is F is applied circular disc of mass mand radius R which is kept on a smooth surface as shown in the figure The angular acceleration of the...
- Q The front wall of a drawer in a cabinet is provider with two symmetrical handles The distance between the handles is and the length i e depth of the drawer...
- Q The velocity time graph of a body is as shown in the graph 1 State the kind of motion represented by OA and AB 2 What is the velocity of...
- Q 12 In rear wheel drive cars the engine rotates the rear wheels and the front wheels rotate only because the car moves If such a car accelerates on a horizontal...
- Q Question No 17 A Maximum Mark 4 00 Negative Mark 1 00 A block of mass 5 kg is pressed against a wall with a horizontal force of 100 N...
- Q The coefficient of friction between 12 kg block and 3 kg platform BD are us 0 60 and 0 40 respectively Determine the magnitude of Hk acceleration of the block...
- Q Block A of mass 35 kg is resting on a frictionless floor Another block B of mass 7 kg is resting on it as shown in the figure The coefficient...
- Q A 20 kg block is initially at rest A 75 N force is required to set the block in motion After the motion a force of 60 N is applied...
- Q Consider a uniform cubical box of side a on a rough floor that is to be moved by applying minimum possible force F at a point b above its centre...
- Q The following figure shows a logic gate circuit or with two inputs A and B and the output C The voltage waveforms of A B and C are as shown...
- Q 2 The normal force between a snowmobile and the snow has a magnitude of 2200 N the horizontal force needed to get the snowmobile to just start moving has a...
- Q Q 18 SINGLE CHOICE A block A of mass 10 kg is placed on rough horizontal plank B x y plane where gravity act vertically downward Hs 1 2 k...
- Q A vertical capillary tube with inside radius 0 25 mm is submerged into water so that the length of its part protruding over the water surface is equal to 25...
- Q A massless spool of inner radius r outer radius R is placed against a vertical wall and a tilted split floor as shown A light inextensible thread is tightly wound...
- Q Pam s family clearing some land and there is a large bouider ating on top of the ground Even with the entire family pushing on it they cannot move it...
- Q d zero 22 The angular velocity of the engine and hence of t wheel of a scooter is proportional to the petrol inp per second The scooter is moving on...
- Q A block of mass 20 kg is moved with constant velocity along an inclined plane of inclination 37 with help of a force of constant power 50 W If the...
- Q A block of mass 1 kg is connected to a spring of spring constant N m fixed at other end and kept on smooth level ground The block is pulled...
- Q In the situation shown in figure for what value of force F in Newton sliding between middle and low block will start Take g 10 m s fagur ei T...
- Q a Frictional force between block and contact surface depends on area of contact b Frictional force may also act when there is no relative motion between the contact surfaces The...
- Q A block of mass 4 kg is placed on rough horizontal surface with coefficient of friction 0 5 A time dependent force F 4 9 t acts on block At...
- Q 35 A body is moving up an inclined plane of angle 0 with an initial kinetic energy E The coefficient of friction between the plane and body is u The...
- Q 14 A block of mass m slides down a rough inclined plane of inclination with horizontal with zero initial velocity The coefficient of friction between the block and the plane...
- Q 9 A block of mass m is attached with a massless spring of force constant k The block is placed over a rough inclined surface for which the coefficient of...
- Q Two roommates are trying to get an armchair into their apartment They found the armchair did not fit through the front door so they decide to take it below their...
- Q Consider a system of infinite pulleys and blocks as shown Every next block is twice heavier than the previous one All pulleys and strings involved are ideal System is released...
- Q If a Towing force P of 5 N is applied to keep a body in equilibrium on a plane inclined at and angle of 30degree the weight of body is...
- Q A block of mass m rests on a rough inclined plane making an angle 30 with the horizontal The coefficient of static friction between the block and the plane is...
- Q dt V m A 4 kg slab rests on frictionless floor as shown in Fig 1 17 A 1 kg block rests on the top of the slab The static...
- Q If coefficient of friction between all surfaces is 0 4 then find the minimum force F to have equilibrium of the system Take g 10 m s 62 5 N...
- Q An object of mass m held against a vertical wall by applying horizontal force F as shown in the figure The minimum value of the force F is F Wall...
- Q Given MA 30 kg mB 10 kg mc 20 kg Between A and B 0 3 between B and C 0 2 and between C and ground 3 0 1...
- Q A block of weight 200 N is at rest on a rough inclined plane of inclination angle 8 30 The inclined plane is at rest in the earth s inertial...
- Q Which of the following is correct when a person walks on a rough surface Ja uch with geak your dadi a A The frictional force exerted by the surface keeps...
- Q No 24 View In English A cylinder rolls up an inclined plane reaches some height and then rolls down without slipping throughout these motions The directions of the frictional force...
- Q 40 A block is released on the slant face of a wedge of equal mass placed on a horizontal floor The slant face of the wedge makes an angle of...
- Q 3 24 A hemispherical bowl of radius R is rotated about its vertical axis A small particle is kept on its inner surface where the radius makes an angle 0...
- Q Consider two blocks connected as shown in Figure 1 Block A has mass 2 00 kg and block B has mass 5 00 kg The table on which B sits...
- Q The front wall of a drawer in a cabinet is a provider with two symmetrical handles The distance between the handles is 1 and the length i e depth of...
- Q A contestant in a winter games event pushes a 55 0 kg block of ice across a frozen lake as shown in the figure 25 The coefficient of static friction...
- Q Question 23 Consider uniform cubical box of side a on a rough floor that is to be moved by applying minimum possible force F at a point b above its...
- Q As shown in the figure below the tank is filled with 100 1 water and it has inlet pipe with filling rate of 1250 ml minute A bucket is attached...
- Q A given object takes 2 times as much time to slic down a 45 rough incline as it takes to slide down perfectly smooth 45 incline The coefficient kinetic friction...
- Q lative lume if the ty of nis on is an is 2 2 an fic T ere he ass ter K e a 6 5 28 A stone is thrown...
- Q A box of mass 20 kg is connected to mass of 2 kg hanging through a light string and an ideal pulley as shown in figure Coefficient of kinetic friction...
- Q A horizontal force of 100 N is necessary to just hold a block stationary against a wall The coefficient of friction between the block and the wall is 0 2...
- Q Starting from rest a body slides down a 45 inclined plane in twice the time it takes to slide down the same distance in the absence of friction The coefficient...
- Q A 1 5 kg cart is pulled with a force of 7 3 N at an angle of 40 above the horizontal If a kinetic friction force of 3 2...
- Q Static friction between two surfaces Prevents the relative motion between them Acts opposite to the direction of motion of them and is constant Acts in opposite direction of applied force...
- Q A uniform cubical block is held stationary against a rough wall by applying a force F then which of the following statement is correct 2a Ta F 1 Normal reaction...
- Q Coefficient of friction between A and B is u The minimum force F with which A will be pushed such that B will not slip down is AMN A 1...
- Q Identify the correct statement Kinetic friction depends on area of contact for a given normal contact face Coefficient of kinetic friction is generally less tha coefficient of static friction The...
- Q 26 A suitcase is gently dropped on a conveyor belt moving at 3 m s If the coefficient of friction between the belt and the suitcase is 0 5 Find...
- Q A small block of mass m can move inside a fixed spherical rough surface of radius R Block is given a horizontal velocity V at lower most point sufficient for...
- Q A block D weighing 300 kg is suspended by means of two cords A and B as shown in the figure W is a vertical wall and R a horizontal...
- Q blocks of masses and 8 kg The blocks A B 3 kg 4 kg respectively are placed another over one F C Fig 2 27 Coefficient of friction Fig 2...
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