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General
Easy
Question
In a conical pendulum, the bob is rotated with different angular velocities and tension in the string is calculated for different values of w. Which of them is correct graph between T & w
The correct answer 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 
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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
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 . The observer B finds that the work done by pseudo force 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
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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