Physics-
General
Easy
Question
In the arrangement shown in figure wedge of mass M moves towards left with an acceleration a. All surfaces are smooth. The acceleration of mass 
relative to wedge is :
- a/2
The correct answer is:
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Two blocks 
and 
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Two blocks and of equal mass are connected through a massless string and arranged as shown in figure. Friction is absent everywhere. When the system is released from rest:
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In fig. all the pulleys and strings are massless and all the surfaces are frictionless. Small block of mass m is placed on fixed wedge. (take 
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A slider block of mass 10 kg with a hanging rope is moving on an inclined surface at an angle of 30° with horizontal. A monkey of 10 kg is climbing on the rope with an acceleration of 
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Block A moves on fixed incline. Surface PQ of block A is parallel to the inclined surface of the incline. The rod B rests on block A, as shown. All contacts are smooth. If the acceleration of the block A is a, find the acceleration of rod B :
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Lifts A and B of masses 
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A smooth ring of mass m can slides on a fixed horizontal rod. A string tied to the ring passes over a fixed pulley B and carries a block C of mass 2 m as shown below. As the ring starts sliding :
A smooth ring of mass m can slides on a fixed horizontal rod. A string tied to the ring passes over a fixed pulley B and carries a block C of mass 2 m as shown below. As the ring starts sliding :
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A boy of mass 40 kg stands in a frame of mass 360 kg. He pulls on a light rope which passes over a pulley. The other end of the rope is firmly attached to the frame. What force should be exerted by the boy on the rope for the system to be in equilibrium ? ( g= acceleration due to gravity)
A boy of mass 40 kg stands in a frame of mass 360 kg. He pulls on a light rope which passes over a pulley. The other end of the rope is firmly attached to the frame. What force should be exerted by the boy on the rope for the system to be in equilibrium ? ( g= acceleration due to gravity)
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Two insects each of mass m moves with accelerations 
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A horizontal uniform beam AB of length 4 m and a mass of 20 kg is supported at the end B by means of a string which passes over a fixed, smooth pulley supporting a counterbalancing weight of 8 kg on the other side. What force, F, when applied at the point in a suitable direction, will hold the beam in static equilibrium ?
A horizontal uniform beam AB of length 4 m and a mass of 20 kg is supported at the end B by means of a string which passes over a fixed, smooth pulley supporting a counterbalancing weight of 8 kg on the other side. What force, F, when applied at the point in a suitable direction, will hold the beam in static equilibrium ?
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The system starts from rest and A attains a velocity of 5 m/s after it has moved 5 m towards right. Assuming the arrangement to be frictionless every where and pulley & string to be light, the value of the force F applied on A is :
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The acceleration of the block B in the above figure, assuming the surfaces and the pulleys 
and 
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At the instant t=0, a force F=kt ( k is a constant) acts on a small body of mass m resting on a smooth horizontal plane. The time, when body leaves the surface is :
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A uniform rod of length L and density 
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A chain of mass ' m ' is attached at two points A and B of two fixed walls as shown in the figure. The tension in the chain at A is
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A smooth ring of mass is in equilibrium. Assuming ideal condition, the tension in the string is equal to :
A smooth ring of mass is in equilibrium. Assuming ideal condition, the tension in the string is equal to :
physics-General
