Physics-
General
Easy
Question
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 :
The correct answer is:
Related Questions to study
physics-
A uniform rod of length L and density 
is being pulled along a smooth floor with a horizontal acceleration 
(sec figure). The magnitude of stress ( 
) at the transverse cross-section through the midpoint of the rod is
A uniform rod of length L and density is being pulled along a smooth floor with a horizontal acceleration (sec figure). The magnitude of stress ( ) at the transverse cross-section through the midpoint of the rod is
physics-General
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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
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
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Two smooth particles of masses 
and 
connected by a light inextensible string experience forces 
and 
as shown in the figure. The condition for which the tension in the string appears is:
Two smooth particles of masses and connected by a light inextensible string experience forces and as shown in the figure. The condition for which the tension in the string appears is:
physics-General
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A rod of length 
is moving such that its ends A and B move in contact with the horizontal floor and vertical wall respectively as shown in figure. O is the intersection point of the vertical wall and horizontal floor. The velocity vector of the centre of rod C is always directed along tangent drawn at C to the -
A rod of length is moving such that its ends A and B move in contact with the horizontal floor and vertical wall respectively as shown in figure. O is the intersection point of the vertical wall and horizontal floor. The velocity vector of the centre of rod C is always directed along tangent drawn at C to the -
physics-General
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What is the relation between velocities of blocks A and B in the given figure.
What is the relation between velocities of blocks A and B in the given figure.
physics-General
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If the block A and B are moving towards each other with acceleration a and b as shown in the Fig. Find the net acceleration of block C.
If the block A and B are moving towards each other with acceleration a and b as shown in the Fig. Find the net acceleration of block C.
physics-General
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What is the relation between velocities of points A and B in the given figure.
What is the relation between velocities of points A and B in the given figure.
physics-General
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What is the relation between velocities of points A and B in the given figure.
What is the relation between velocities of points A and B in the given figure.
physics-General
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There are two blocks A and B in contact with vertical and horizontal smooth surface respectively. Acceleration of A and B are 
and 
respectively along their constrained direction of motions. Relation between and is (Assume 
)
There are two blocks A and B in contact with vertical and horizontal smooth surface respectively. Acceleration of A and B are and respectively along their constrained direction of motions. Relation between and is (Assume )
physics-General
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The rod A slides down on block B which slides down on a fixed inclined plane making an angle 
with horizontal. The angles arc shown. If and a B are the acceleration of A and B respectively, then 
is
The rod A slides down on block B which slides down on a fixed inclined plane making an angle with horizontal. The angles arc shown. If and a B are the acceleration of A and B respectively, then is
physics-General
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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
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
physics-General
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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
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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
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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
