Physics-
General
Easy
Question
The work done by the force 
around the path shown in the figure is
- zero
The correct answer is: zero
Related Questions to study
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A block of mass m is kept in an elevation which starts moving downward with an acceleration a as shown in figure. The block is observed by two observers A and B for a time interval 
. According to the observer A
A block of mass m is kept in an elevation which starts moving downward with an acceleration a as shown in figure. The block is observed by two observers A and B for a time interval . According to the observer A
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A block of mass m is kept in an elevation which starts moving downward with an acceleration a as shown in figure. The block is observed by two observers A and B for a time interval . According to observer B, the net work done on the block is
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A block of mass m is kept in an elevation which starts moving downward with an acceleration a as shown in figure. The block is observed by two observers A and B for a time interval t0. The observer B finds that the work done by gravity on the block is
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According to observer B, the potential energy of the spring increases
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A block of mass m moving with a velocity v0 on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers: A: standing on the horizontal surface B: standing on the block. To an observer A, the net work done on the block is
A block of mass m moving with a velocity v0 on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers: A: standing on the horizontal surface B: standing on the block. To an observer A, the net work done on the block is
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A block of mass m moving with a velocity v0 on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers: A: standing on the horizontal surface B: standing on the block. To an observer A, the work done by the normal reaction N between the block and the spring on the block is
A block of mass m moving with a velocity v0 on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers: A: standing on the horizontal surface B: standing on the block. To an observer A, the work done by the normal reaction N between the block and the spring on the block is
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A block of mass m moving with a velocity v0 on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers: A: standing on the horizontal surface B: standing on the block. To an observer A, the work done by spring force is
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A block of mass 'm' is released from rest at point A. The compression in spring, when the speed of block is maximum
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A body with mass 2 kg moves in one direction in the presence of a force which is described by the potential energy graph. If the body is released from rest at x = 2m, then its speed when it crosses x = 5 m is
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A 1.0 kg block collides with a horizontal weightless spring of force constant 2.75 Nm–1 as shown in figure. The block compresses the spring 4.0 m from the rest position. If the coefficient of kinetic friction between the block and horizontal surface is 0.25, the speed of the block at the instant of collision is
A 1.0 kg block collides with a horizontal weightless spring of force constant 2.75 Nm–1 as shown in figure. The block compresses the spring 4.0 m from the rest position. If the coefficient of kinetic friction between the block and horizontal surface is 0.25, the speed of the block at the instant of collision is
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In the figure shown all the surfaces are frictionless, and mass of the block, m = 1 kg. The block and wedge are held initially at rest. Now wedge is given a horizontal acceleration of 10 m/s2 by applying a force on the wedge, so that the block does not slip on the wedge. Then work done by the normal force in ground frame on the block in 
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In the figure shown all the surfaces are frictionless, and mass of the block, m = 1 kg. The block and wedge are held initially at rest. Now wedge is given a horizontal acceleration of 10 m/s2 by applying a force on the wedge, so that the block does not slip on the wedge. Then work done by the normal force in ground frame on the block in seconds is
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A loop of light inextensible string passes over smooth small pulleys A and B. Two masses m and M are attached to the points O and C respectively. Then the condition that m and M will cross each other. [Take AB = 2l and AC = AB = hl] will be
A loop of light inextensible string passes over smooth small pulleys A and B. Two masses m and M are attached to the points O and C respectively. Then the condition that m and M will cross each other. [Take AB = 2l and AC = AB = hl] will be
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Three blocks A, B and C are kept as shown in the figure. The coefficient of friction between A and B is 0.2, B and C is 0.1 , C and ground is 0.0. The mass of A, B and C are 3 kg, 2 kg and 1 kg respectively. A is given a horizontal velocity 10 m/s. A, B and C always remain in contact i.e. lies as in figure. The total work done by friction will be:
Three blocks A, B and C are kept as shown in the figure. The coefficient of friction between A and B is 0.2, B and C is 0.1 , C and ground is 0.0. The mass of A, B and C are 3 kg, 2 kg and 1 kg respectively. A is given a horizontal velocity 10 m/s. A, B and C always remain in contact i.e. lies as in figure. The total work done by friction will be:
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In the system shown in the figure there is no friction anywhere. The block C goes down by a distance x0 = 10 cm with respect to wedge D when system is released from rest. The velocity of A with respect to B will be (g = 10 m/s2) :
In the system shown in the figure there is no friction anywhere. The block C goes down by a distance x0 = 10 cm with respect to wedge D when system is released from rest. The velocity of A with respect to B will be (g = 10 m/s2) :
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