Physics question and answers for June 07, 2024
- Q An asteroid is moving along a straight line A force acts along the displacement of the asteroid and slows it down The asteroid has a mass of 4 7x 10...
- Q A body of mass 2 kg is moving along y axis with velocity 10 m s Impulsive force shown in the figures acts on it along x axis Work done...
- Q A DC motor operates with 220V mains Initially it draws a current of 20A The resistance of starter is 60 When the motor runs at its full speed it consumes...
- Q A 1 80 kg block slides on a rough horizontal surface The block hits a spring with a speed of 2 00 m s and compresses it 11 0 cm...
- Q Mass input Energy input Energy Output Mass Output Open System The open given in the schematic diagram below mass energy entropy and exergy balance of the system Write down the...
- Q n elastic ball are placed at rest on a smooth horizontal plane which is circular at the end with radius R m m 2 2 as shown in the figure...
- Q A 2 kg object is released from rest from a height of 3 m above Earth s surface How much kinetic energy does the object have when it reaches a...
- Q Electrons with energies of 1 0 eV and 2 0 eV are incident on a barrier 10 0 eV high and 0 50 wide a Find their respective transmission probabilities...
- Q A force of 40 N is applied on a body of mass 4 kg resting on horizontal plane The body gain a kinetic energy 20 J after it move distance...
- Q The work done in moving a particle from point 2 2 to 4 5 in X Y plane and in a force field with potential energy U k y is...
- Q A 100 g ball moving to the right at 4 0 m s collides head on with a 200 g ball that is moving to the left at 3 0...
- Q A bob of mass m suspended by a string of length is given a minimum velocity required to complete a full circle in the vertical plane At the highest point...
- Q A uniform metal rod is suspended from one end Wher it is displaced through 60 from downward vertical the change in potential energy is U The further change in potential...
- Q A particle is acted upon by a constant power Then which of the following physical quantity remains constant Speed Rate of change of acceleration Rate of change of kinetic energy...
- Q A person of mass 50 kg standing on a smooth horizontal plane of ice throws a body of mass 5 kg with velocity 10 m s Then the total kinetic...
- Q 6 A block of mass 2 0 kg kept at rest on an inclined plane of inclination 37 is pulled up the plane by applying a constant force of 20...
- Q 6 In Fig B the pin P sliding without friction in the slotted bar OA moves with constant velocity vo along the horizontal x axis causing the bar OA to...
- Q A uniform chain of length I and mass m is placed on a smooth table with one fourth of its length hanging over the edge The work that has to...
- Q 76 A massless spring k 800 N m attached with a mass 500 g is completely immersed in 1kg of water The spring is stretched by 2cm and released so...
- Q A 10 kg block is gently put on a moving plank with velocity 1 m s on a frictionless horizontal ground surface And in due time the block starts with...
- Q A body of mass 1 0 kg initially at rest is moved by a horizontal force of 0 5 N on a smooth frictionless table Calculate the work done by...
- Q Two blocks in an at wood machine have masses 2kg and 3kg The work done by the gravity during the fourth second after the system is released from rest is...
- Q A heavy box of 40 kg is pushed along 20 m by two coolies over a railway platform whose coefficient of friction with the box is 0 4 The work...
- Q A ball hits a floor and rebounds after an inelastic collision In this case a the momentum of the ball just after the collision is same as that just before...
- Q A big block of mass M is placed on horizontal surface Two cubes each of mass m are attached with ideal string pulley system as shown in figure One cube...
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