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Tag archives for problem of the day

Physics: Mechanics

17
May
posted by                filed under Physics, Problems in Physics
Physics: Mechanics
TOPIC : Mechanics Q. Three loads of mass m1, m2 and M are suspended on a string passed through two pulleys as shown: The pulleys are at the same distance from the point of suspension. What is the ratio of these masses at which the system is in equilibrium? The easiest way to reach a solution is to consider the point at ...more»
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Physics: Current Electricity

10
May
posted by                filed under Physics
Physics: Current Electricity
Topic: Current Electricity Q. A wire frame in the form of a tetrahedron ABCD is connected to a d.c. source. The resistances of all the edges of the tetrahedron are equal. Which edge of the frame should be eliminated to obtain the maximum change in the current in the circuit? The first observation to be made is that by symmetry, there is no ...more»
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Physics: Force

3
May
posted by                filed under Physics, Problems in Physics
Physics: Force
This problem is again a challenge for you. Q: Suppose that a body moves in a medium which offers drag to its motion, the drag force F being proportional to the velocity v of the body, raised to some power b, that is, F = avb If the body is imparted an initial velocity, is it possible for it to cover ...more»
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