Physics-
General
Easy
Question
A block is dragged on a smooth plane with the help of a rope which moves with a velocity U as shown in figure. The horizontal velocity of the block is
The correct answer is:
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physics-
A bob of mass 
hangs by a light inextensible string which passes over a fixed smooth pulley P and connects a ring of mass 
. The ring is constrained to move along a smooth rigid horizontal rod. The instantaneous velocities and accelerations of the bodies are 
and 
, a 
respectively then :
A bob of mass hangs by a light inextensible string which passes over a fixed smooth pulley P and connects a ring of mass . The ring is constrained to move along a smooth rigid horizontal rod. The instantaneous velocities and accelerations of the bodies are and , a respectively then :
physics-General
physics-
The block A is pushed towards the wall by a distance and released. The normal reaction by vertical wall on the block B v/s compression in spring is given by :
The block A is pushed towards the wall by a distance and released. The normal reaction by vertical wall on the block B v/s compression in spring is given by :
physics-General
physics-
Two springs are a series combination and are attached to a book of mass 'm' which is in equilibrium. The spring constants and the extensions in the springs are as shown in the figure. Then the force exerted by the spring on the block is :
Two springs are a series combination and are attached to a book of mass 'm' which is in equilibrium. The spring constants and the extensions in the springs are as shown in the figure. Then the force exerted by the spring on the block is :
physics-General
physics-
In the situation shown in the figure, the system is in equilibrium. All the strings, spring and pulley are light. Just after cutting the string AB,
In the situation shown in the figure, the system is in equilibrium. All the strings, spring and pulley are light. Just after cutting the string AB,
physics-General
physics-
System shown in figure is in equilibrium and at rest. The spring and string are massless, now the string is cut. The acceleration of mass 2 m and m just after the string is cut will be :
System shown in figure is in equilibrium and at rest. The spring and string are massless, now the string is cut. The acceleration of mass 2 m and m just after the string is cut will be :
physics-General
physics-
Mass M is displaced by a vertical distance 
from equilibrium position by applying a force F The spring constant are 
and 
. Find the force F
Mass M is displaced by a vertical distance from equilibrium position by applying a force F The spring constant are and . Find the force F
physics-General
physics-
In the two systems as shown, what should be value of mass M so that extensions in two springs (of same spring constant k) is same (in kg ) ?
In the two systems as shown, what should be value of mass M so that extensions in two springs (of same spring constant k) is same (in kg ) ?
physics-General
physics-
Fig shows variation of force acting on a body, with time. Assuming the body to start from rest, the variation of its momentum with time is best represented by which plot?
Fig shows variation of force acting on a body, with time. Assuming the body to start from rest, the variation of its momentum with time is best represented by which plot?
physics-General
physics-
The variation of force acting on a particle of mass m with time is shown in figure. If the initial speed of particle is zero, then what is the speed of particle at 
?
The variation of force acting on a particle of mass m with time is shown in figure. If the initial speed of particle is zero, then what is the speed of particle at ?
physics-General
physics-
Find the mass M of the hanging block in figure. Which will prevent the smaller block from slipping over the triangular block. All the surfaces are frictionless and the strings and the pulleys are light.
Find the mass M of the hanging block in figure. Which will prevent the smaller block from slipping over the triangular block. All the surfaces are frictionless and the strings and the pulleys are light.
physics-General
physics-
A man of mass m=60 kg is standing on weighing machine fixed on a triangular wedge of angle 
as shown in the figure. The wedge is moving up with an upward acceleration 
. The weight registered by machine is:
A man of mass m=60 kg is standing on weighing machine fixed on a triangular wedge of angle as shown in the figure. The wedge is moving up with an upward acceleration . The weight registered by machine is:
physics-General
physics-
A block of mass 1 kg is at rest relative to a smooth wedge moving leftwards with constant acceleration 
Let 
be the normal reaction between the block and the wedge. Then : 
A block of mass 1 kg is at rest relative to a smooth wedge moving leftwards with constant acceleration Let be the normal reaction between the block and the wedge. Then :
physics-General
physics-
A block is placed on an inclined plane moving towards right horizontally with an acceleration 
. The length of the plane AC=1 m. Friction is absent everywhere. The time taken by the block to reach from C to A is 
A block is placed on an inclined plane moving towards right horizontally with an acceleration . The length of the plane AC=1 m. Friction is absent everywhere. The time taken by the block to reach from C to A is
physics-General
physics-
A block of mass 
is pulled by a string acts which passes over a smooth pulley P fitted with the wedge of mass M. A horizontal force F=mg acts on the string. If the string is massless and inextensible, assuming frictionless contacting surfaces and 
then
A block of mass is pulled by a string acts which passes over a smooth pulley P fitted with the wedge of mass M. A horizontal force F=mg acts on the string. If the string is massless and inextensible, assuming frictionless contacting surfaces and then
physics-General
physics-
Find the acceleration of the wedge so that the block is stationary with respect to wedge
Find the acceleration of the wedge so that the block is stationary with respect to wedge
physics-General
