Posted by admin | Posted on 25-10-2009
Category : CBSE +2 Physics, IIT-JEE Physics, NCERT Physics
If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame,one can surely say that
A] linear momentum of the system does not change in time
B] kinetic energy of the system does not change in time
C] angular momentum of the system does not change in time
D] potential energy of the system does not change in time.
Ans : ΣF =0⇒ P=constant hence option A] is correct.
Posted by admin | Posted on 30-09-2009
Category : CBSE +2 Physics, Easy Physics, IIT-JEE Physics, NCERT Physics
Learning Physics is often considered a tough nut to crack,especially as it involves two basic steps..that is understanding a theoritical concept,and then applying it in the problem / workout at hand.The issue here is,not only in understanding the concept,but the factual application of the principle involved in the a] right manner b] right level and the c] right context.Hence,even for a studious person,one or all of the above factors is bound to go wrong.
Welcome to PHYSICSMYND, the web resource which will enable you to tackle all the physics learning related issues you will probably encounter .Eventhough the content level would be mainly aimed at IIT-JEE PHYSICS EXAM done in India, it would be equally suitable for a student following any University level Physics classes including the International Cambridge Examinations.
Last,but not least this site would also have info feeds on path breaking Science & Technology Applications with special emphasis on the physics of those applications.
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