Physics question and answers for June 15, 2024
- Q A conservative force field F is shown below Compute the work done by F to move a particle from 1 1 to 1 1 along the indicated path For scale...
- Q A body of mass m begins to move under the action of time dependent force F ti 21 N where i and are unit vectors along x and y axis...
- Q In the circuit shown use the node analysis method to calculate 3V 0 10 Q 2 A 492 502 222 w V 4 A a The voltage Vo b the...
- Q If on Jupiter unit of force is Tendulkar unit of acceleration is Kohli and unit of time is Rohit such that 1 Tendulkar 10 N 1 Kohli 5 m s...
- Q In the diagram below a solid marble rolls from rest without slipping down a mountain of height h 100 m A Find the linear v 1 and angular speed omega...
- Q Light with an energy of 24 W cm falls on a non reflecting surface at normal incidence The surface area is 50 cm What is total momentum delivered to surface...
- Q m 5kg block moving from point A to point B on a 53 inclined surface When it moves downwards in the blocky direction d 4 meters Find how many Joules...
- Q 2 The mass of a bucket full of water is 15 kg It is being pulled up from a 15m deep well Due to a hole in the bucket 6...
- Q a potential energy given by U exerted on it is 1 2 20y 4 Z 20y 20x Z 20v i 20x i 20xY ik 3 20v i 20x 20xv 20x...
- Q A uniform chain of length L and mass M is lying on 2 of its length is hanging down 3 a smooth table and over the edge of the table...
- Q m A frictionless cart of mass M carries two other frictionless carts having masses m and connected by a string passing over a pulley as shown in figure The horizontal...
- Q The uniform bar shown in the figure weighs 20 lb and when the bar is upright the spring is not deformed Using the Potential Energy Method determine the position s...
- Q A small bob of mass mis suspended vertically with the help of an ideal inextensible galong the horizontal at lowest string to a rigid support Bob is given a velocity...
- Q A force F Kx acts on a particle at an angle of 60 with the x axis The work done in displacing the particle from to X1 will be 1...
- Q A stone of mass 100 gm is thrown from ground with a speed of 40 2 m s and at angle of 45 with horizontal at t 0 The average...
- Q A particle of mass mis driven by a machine that delivers a constant power kwatts If the particle starts from rest the force on the particle at time t is...
- Q Two similar springs P and Q have spring constants Kp and Ko such that Kp KQ They stretched first by the same amount case a then by the same force...
- Q 45 A 100 g mass is going in a vertical circle of radius 1m What is the minimum speed that mass will reach the top of the circle What is...
- Q planes of lengths and 2s from state of rest as shown in figure The relation between velocities V and V at the bottom of the planes will be V 1...
- Q 1 5 J 2 10 J A bullet of mass 50 g moving with 100 m s enters into a horizontal block of thickness 10 m It emerges with kinetic...
- Q A The work done by a force is defined by W F It is found that the work done is zero even if F and s are not equal to...
- Q A certain CI engine consumes No 2 diesel fuel Hg 45 000 kJ kg at the rate of 26 3 kg h while running at a rated speed of 2200...
- Q A ring of mass m 30g slides over a smooth vertical rod Attached to the ring is a light string passing over a smooth fixed pulle distance of 0 8...
- Q A particle of mass m is tied to one end of a massless inextensible string of length and whirled in a vertical circle Find the maximum tension in the string...
- Q Two bars connected by a weightless spring of stiffness and length in the non deformed state rest on horizontal plane A constant horizontal force F starts acting on one of...
- Q A pesky fly mass 5 g is hovering in the air outside your window A sudden gust of wind exerts a force of F 4 0 i 6 0j 10...
- Q 3 A block starts from rest It is pushed with an applied force for d m It is released and trave over a rough patch Calculate the maximum vertical displacement...
- Q A 7 80 g bullet moving at 690 m s penetrates a tree trunk to a depth of 6 20 cm Use work and energy considerations to find the average...
- Q A ball is projected with initial velocity u at an angle to the horizontal Then horizontal displacement covered by ball from starting to the time instant when it collides third...
- Q A crate of mass m 12 4 kg is pulled by a massless rope up a 36 9 ramp The rope passes over an ideal pulley and is attached to...
- Q Two balls of charges q and q initially have exactly same velocity Both the balls are subjected to same uniform electric field for same time As a result the velocity...
- Q Q4 For the figure below the spring is used to stop a 10 kg package If the maximum deflection in the spring is 70 mm a the total work of...
- Q Three designs are proposed for an engine operating between 500 K and 300 K For 1 kcal of heat input design A claims to produce 3000 J of work design...
- Q Two infinitely long parallel conducting plates having surface charge densities 6 and o respectively are separated by a small distance The medium between the plates is vacuum If eo is...
- Q C is smalle for the lighter car D depends on the volume of Two objects are moving at a speed of 8m sec and 12 m sec respectively If they...
- Q A ball of mass 5g is thrown downward from point A with certain initial velocity Vo Towards a hard floor Without any loss of energy it rebounds from the floor...
- Q In the figure shown find work done by tension in string on 3 kg block in first two second from beginning of motion The system is set free at t...
- Q 10 kg i Two blocks A and B are connec and a spring the string passes over a frictionless pulley as shown in the figure 2 117 Block B slides...
- Q 28 Work Energy and P 16 Potential energy of a particle of mass 1 kg moving x along x axis is given by U 4x 12 where 3 x is...
- Q A circular platform is mounted on a frictionless vertical axle Its radius R 2 m and its moment of inertia about the axle is 200 kgm It is initially at...
- Q A moving particle of mass m makes a head on elastic collision with another particle of mass 2m which is initially at rest The percentage loss in energy of the...
- Q 4 49 A small disc A slides down with initial velocity equal to zero from the top of a smooth hill of height H having a horizontal portion as shown...
- Q 124 A chain of mass m 0 80 kg and length 1 1 5 m rests on a rough surfaced table so that one of its ends hangs over the...
- Q 3 35 An object of mass m is tied to string of length L and a variable horizontal force is applied on it which starts at zero and gradually increases...
- Q A force F 51 31 Newton is applied over a particle which displaces it from its origin to the point r 21 11 metres The work done on the particle...
- Q A cylinder having length 10cm and density 0 65 g cm floats half submerged in the liquid shown Pair 1 3 x 10 3 g cm Now pressure of air...
- Q If your home heating system brings air with a temperature of 5 C and specific humidity of 1 3 g kg inside and heats it to 21 C what is...
- Q Anonymous Quiz 26 a The kinetic energy of a system cannot be changed without changing the momentum 43 b The kinetic energy of a system can be changed without changing...
- Q Q6 Which of the following is correct Anonymous Quiz 26 a The kinetic energy of a system cannot be changed without changing the momentum 43 b The kinetic energy of...
- Q 7 A man drags a block through 10 m on rough surface 0 5 A force of 3 kN acting at 30 to the horizontal The work done by applied...
- Q The potential energy of a particle of mass 5 kg moving in xy plane is given as U 7x 24y joule x and y being in metre Initially at t...
- Q A is a fixed point at a height above a perfectly inelastic smooth horizontal plane A light inextensible string of length has one end attached to A and other to...
- Q n A radioactive nucleus of mass M emits a photon 24 of frequency v and the nucleus recoils The recoil energy will be 1 Mc hv 2 h v 2Mc...
- Q The non conservative force propelling a 1 70 x 10 kg car up a mountain road does 6 70 x 10 J of work on the car The car starts...
- Q A uniform chain of length 2 mis kept on a table such that a length of 60 cm hangs freely from the edge of the table The total mass of...
- Q 4 m s opposite to 4 4 m s in original direction 20 A particle is released from rest at origin It moves under the influence of potential field U...
- Q Two blocks of masses 2 9 kg and 1 9 kg are suspended from a rigid support S by two inextensible wires each of length 1 m The upper wire...
- Q Potential energy function describing the interaction between two atoms of a diatomic molecule is U r 1 2 1 1 2 b Force acting between them will be zero when...
- Q Question 13 A marble moving with some velocity collides perfectly elastically head on with anothermarble at rest having mass 1 5 times the mass of the colliding marble The percentageof...
- Q Question 12 A man of 60 kg weight is standing at rest on a platform He jumps up vertically a distance of 1 m and the platform at the same...
- Q A particle of mass 3 kg is taken along ABCDE from A to E Height of B C D are 5m 4m 6m respectively Total path length is 20m AE...
- Q 26 The potential energy of a system increases if work is done a upon the system by a nonconservative force b by the system against a conservative force c by...
- Q A particle moves toward x 0 under the influence of a potential V x Alx n where A 0 and n 0 The particle has barely enough energy to reach...
- Q A bead under the influence of gravity slides down a frictionless wire whose height is given by the function y x Assume that at position x y 0 0 the...
- Q Abody of mass 4 m is lying in X Y plane at rest It suddenly explodes into three pieces Two pieces each of mass m move perpendicular to each other...
- Q If two point positive charges Q are tied to spring at it s two ends and charges are in equilibrium at seperation d between them Natural length of spring is...
- Q The total mechanical energy of the roller coaster cart below at Point A is 180 000 J The speed of the cart at Point B is 20 m s Assume...
- Q Pete Zaria works on weekends at Barnaby s Pizza Parlor His primary responsibility is to fill drink orders Customers He fills a pitcher full of Cola places it on the...
- Q 9 An 38 g rifle bullet traveling at 410 m s buries itself in a 5 kg pendulum hanging on a 3 2 m long string which makes the pendulum...
- Q 6 A basketball whose mass is 0 660 kg falls from rest through a height of 5 60 m and then bounces back On its way up it passes by...
- Q Listen V IR Series Circuits VT V V V 1 T 1 1 13 RT R R R 1 39 0 35 E Pt 0 69 0 03 P IV...
- Q A roller coaster car is starting from rest from a height of 54 m as shown in the image below Assume that this is an ideal roller coaster and that...
- Q Question 14 3 points If the power of a motor is rated at 5 60 kW how much work can the motor do in 20 0 min
- Q A 3 25 kg block of silver is dropped from rest at a height of 75 0 meters One third of the potential energy is converted into hear energy which...
- Q Please provide full solution to the following problems Question 12 5 points A 7 00 kg object is being pushed forward horizontally by a person with a force of 25...
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