Physics-
General
Easy
Question
All surfaces shown in figure are smooth. System is released with the spring unstretched. In equilibrium, compression in the spring will be :
The correct answer is:
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Three identical blocks are suspended on two identical springs one below the other as shown in figure. If thread is cut that supports block 1 , then initially (choose one alternative only):
Three identical blocks are suspended on two identical springs one below the other as shown in figure. If thread is cut that supports block 1 , then initially (choose one alternative only):
physics-General
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In the given fig, pulley is frictionless and massless. Both the springs are having same force constant 10 N/m. Initially with the string attached to the grounds, the total system is at rest. Now if the string is cut, then immediately after cutting the string,
In the given fig, pulley is frictionless and massless. Both the springs are having same force constant 10 N/m. Initially with the string attached to the grounds, the total system is at rest. Now if the string is cut, then immediately after cutting the string,
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Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 m ?
Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 m ?
physics-General
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Two blocks A and B of masses m&2m respectively are held at rest such that the spring is in natural length. Find out the accelerations of both the blocks jus t after release.
Two blocks A and B of masses m&2m respectively are held at rest such that the spring is in natural length. Find out the accelerations of both the blocks jus t after release.
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In the arrangements shown, the pulleys, strings and springs are weightless and the systems can move freely without friction. The extension of spring in figure 1 is 
and that in figure 2 is 
. Then
In the arrangements shown, the pulleys, strings and springs are weightless and the systems can move freely without friction. The extension of spring in figure 1 is and that in figure 2 is . Then
physics-General
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A particle of mass 
is acted on by two forces of equal magnitude F maintaining their orientation relative to the velocity 
as shown in the figures(1), (2) and (3). The momentum of the particle
1) 
2) 
3) 
A particle of mass is acted on by two forces of equal magnitude F maintaining their orientation relative to the velocity as shown in the figures(1), (2) and (3). The momentum of the particle
1)
2)
3)
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In the given figure, the position time graph of a particle of mass 0.1 kg is shown. The impulse at t= 2sec is
In the given figure, the position time graph of a particle of mass 0.1 kg is shown. The impulse at t= 2sec is
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A unidirectional force F varying with time 
as shown in the Fig acts on a body initially at rest for a short duration 2T. Then the velocity acquired by the body is
A unidirectional force F varying with time as shown in the Fig acts on a body initially at rest for a short duration 2T. Then the velocity acquired by the body is
physics-General
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In the system shown in Fig, 
, and 
Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block A in horizontal direction is
In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block A in horizontal direction is
physics-General
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In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block B is
In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block B is
physics-General
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In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block C is
In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The acceleration of Block C is
physics-General
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In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The tension in the string is
In the system shown in Fig, , and Friction is absent everywhere, and the string is inextensible and light. If the system is released from rest, then find the following.
The tension in the string is
physics-General
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A block of mass ' m ' is placed on wedge of mass ' M '. If all the surfaces are smooth
Acceleration of masses ' m ' along x and y axes are 
and 
respectively. Accelaration of wedge is 'A'.
A block of mass ' m ' is placed on wedge of mass ' M '. If all the surfaces are smooth
Acceleration of masses ' m ' along x and y axes are and respectively. Accelaration of wedge is 'A'.
physics-General
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Find the minimum acceleration of the wedge so that block under free fall
Find the minimum acceleration of the wedge so that block under free fall
physics-General
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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 :
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 :
physics-General
