Physics-
General
Easy
Question
In given figure, the small block of mass 2m is released from rest when the string is in horizontal position, Displacement of the ring when string makes an angle 
with the vertical will be:
- none of these
The correct answer is:
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AB is an L shaped obstacle fixed on a horizontal smooth table. A ball strikes it at A, gets deflected and restrikes it at B. If the velocity vector before collision is 
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Three blocks are placed on smooth horizontal surface and lie on same horizontal straight line. Block 1 and block 3 have mass m each and block 2 has mass M (M > m). Block 2 and block 3 are initially stationary, while block 1 is initially moving towards block 2 with speed v as shown. Assume that all collisions are headon and perfectly elastic. What value of ensures that block 1 and block 3 have the same final speed?
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A system of two blocks A and B are connected by an inextensible massless string as shown in the figure . The pulley is massless and frictionless. Initially the system is at rest when, a bullet of mass 'm' moving with a velocity 'u' hits the block 'B' and gets embedded into it. The impulse imparted by tension force to the block of mass 3m is :
A system of two blocks A and B are connected by an inextensible massless string as shown in the figure . The pulley is massless and frictionless. Initially the system is at rest when, a bullet of mass 'm' moving with a velocity 'u' hits the block 'B' and gets embedded into it. The impulse imparted by tension force to the block of mass 3m is :
physics-General
