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A massless rope is fixed at one end as shown in fig. Two boys of masses 40kg and 60kg are moving along the rope. The former climbing up with an accelaration of  while  later coming down with constant velocity of . The tension at fixed support will be (g=)

Physics has many definitions. In simple words Physics is branch of science concerned with the nature and properties of matter and energy

You just finished Kinematics

Time (T), velocity (C) and angular momentum (h) are chosen as fundamental quantities instead of mass, length and time. In terms of these, the dimensions of mass would be :

What is a cell?

A man of mass () is sitting in a train movingwith velocity  . He observe that a block of mass  is moving towards him with velocity . Then the kinetic energy of block w.r.t  man is (Assume )

A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in the figure. Work done by normal reaction on block in time t is:

When the rms voltages VL, VC and VR are  measured respectively across the inductor L, the capacitor C and the resistor R in a series  LCR  circuit  connected  to  an AC source, it is found that the ratio VL : VC : VR = 1 : 2 : 3. If the rms voltage of the AC source is 100 V, then VR is close to ?

E=CV²

^where 

V=Ed

Substitute the value of C and V in the first equation

     Write these in ascending and also in descending order.

              (a)  

             (b)  

            (c)  

     Which is the larger fraction?

              (i)   or 

              (ii)   or 

             (iii)   or 

    You get one-fifth of a bottle of juice and your sister gets one-third of the same size of a bottle of juice. Who gets more?