Physics-
General
Easy
Question
A block attached to a spring, pulled by a constant horizontal force, is kept on a smooth surface as shown in the figure. Initially, the spring is in the natural state. Then the maximum positive work that the applied force F can do is : [Given that spring does not break]
The correct answer is:
Related Questions to study
physics-
The given plot shows the variation, the potential energy (U) of interaction between two particles with the separating distance (r) between them. Which of the above statements are correct?
1) B and D are equilibrium points
2) C is a point of stable equilibrium points
3) The force of interaction between the two particles is attractive between points C and D and repulsive between points D and E on the curve
The given plot shows the variation, the potential energy (U) of interaction between two particles with the separating distance (r) between them. Which of the above statements are correct?
1) B and D are equilibrium points
2) C is a point of stable equilibrium points
3) The force of interaction between the two particles is attractive between points C and D and repulsive between points D and E on the curve
physics-General
physics-
In the figure shown the potential energy (U) of a particle is plotted against its position 'x' from origin. Then which of the following statement is correct. A particle at :
In the figure shown the potential energy (U) of a particle is plotted against its position 'x' from origin. Then which of the following statement is correct. A particle at :
physics-General
physics-
Velocity–time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all the forces on the particle is :
Velocity–time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all the forces on the particle is :
physics-General
physics-
The work done in moving a particle under the effect of a conservative force, from position A to B is 3 joule and from B to C is 4 joule. The work done in moving the particle from A to C is :
The work done in moving a particle under the effect of a conservative force, from position A to B is 3 joule and from B to C is 4 joule. The work done in moving the particle from A to C is :
physics-General
physics-
A spring block system is placed on a rough horizontal surface having coefficient of friction 
. The spring is given initial elongation 
and the block is released from rest. For the subsequent motion
A spring block system is placed on a rough horizontal surface having coefficient of friction . The spring is given initial elongation and the block is released from rest. For the subsequent motion
physics-General
physics-
A particle of mass m = 1 kg is moving along y-axis and a single conservative force F(y) acts on it. The potential energy of particle is given by 
where is in meters. At 
the particle has kinetic energy of 15 
. The total mechanical energy of the particle is
A particle of mass m = 1 kg is moving along y-axis and a single conservative force F(y) acts on it. The potential energy of particle is given by where is in meters. At the particle has kinetic energy of 15 . The total mechanical energy of the particle is
physics-General
physics-
The kinetic energy of a particle continuously increase with time. Then
The kinetic energy of a particle continuously increase with time. Then
physics-General
physics-
A particle moves in one dimensional field with total mechanical energy E. If potential energy of particle is 
, then
A particle moves in one dimensional field with total mechanical energy E. If potential energy of particle is , then
physics-General
physics-
A body of mass m is slowly halved up the rough hill by a force 
at which each point is directed along a tangent to the hill. Work done by the force
A body of mass m is slowly halved up the rough hill by a force at which each point is directed along a tangent to the hill. Work done by the force
physics-General
physics-
Simple pendulum 
and 
have lengths 
= 80 cm and 
= 100 cm. The bob are of masses 
and 
. Initially both are at rest in equilibrium position. If each of the bobs is given a displacement of 2cm, the work done is 
respectively. Then,
Simple pendulum and have lengths = 80 cm and = 100 cm. The bob are of masses and . Initially both are at rest in equilibrium position. If each of the bobs is given a displacement of 2cm, the work done is respectively. Then,
physics-General
physics-
The upper half of an inclined plane with inclination q is perfectly smooth while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom if the coefficient of friction for the lower half is given by
The upper half of an inclined plane with inclination q is perfectly smooth while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom if the coefficient of friction for the lower half is given by
physics-General
physics-
A particle is projected along the inner surface of a smooth vertical circle of radius R, its velocity at the lowest point being 
It will leave the circle at an angular distance .... from the highest point.
A particle is projected along the inner surface of a smooth vertical circle of radius R, its velocity at the lowest point being It will leave the circle at an angular distance .... from the highest point.
physics-General
physics-
The potential energy for the force 
if the zero of the potential energy is to be chosen at the point (2, 2, 2) is
The potential energy for the force if the zero of the potential energy is to be chosen at the point (2, 2, 2) is
physics-General
physics-
Consider a roller coaster with a circular loop. A roller coaster car starts from rest from the top of a hill which is 5 m higher than the top of the loop. It rolls down the hill and through the loop. What must the radius of the loop be so that the passengers of the car will feel at highest point, as if they their normal weight ?
Consider a roller coaster with a circular loop. A roller coaster car starts from rest from the top of a hill which is 5 m higher than the top of the loop. It rolls down the hill and through the loop. What must the radius of the loop be so that the passengers of the car will feel at highest point, as if they their normal weight ?
physics-General
physics-
A pendulum bob of mass m is suspended at rest. A constant horizontal force 
starts acting on it. The maximum angular deflection of the string is
A pendulum bob of mass m is suspended at rest. A constant horizontal force starts acting on it. The maximum angular deflection of the string is
physics-General
