[" A particle moves on the rough horizontal ground with some initial velocity say v.If "3/4" th of its "],[" kinetic energy is lost in friction in time "t" then coefficient of friction between the particle and "],[" the ground is: "]

A aprtical moves on a rough horizontal ground with same initial velocity say v_(0) . If (3//4)th of its kinetic energy is lost in friction in time t_(0) , then coefficient of friction between the partical and the ground is:

A particle moves move on the rough horizontal ground with some initial velocity V_(0) . If (3)/(4) of its kinetic enegry lost due to friction in time t_(0) . The coefficient of friction between the particle and the ground is.

A particle moves move on the rough horizontal ground with some initial velocity V_(0) . If (3)/(4) of its kinetic enegry lost due to friction in time t_(0) . The coefficient of friction between the particle and the ground is.

A block begins to move on a rough horizontal surface with an initial velocity u. If it loses of its initial kinetic energy in time t, the coefficient of kinetic friction between the block and the surface is

A particle is projected directly along a rough plane of inclination theta with velocity u. If after coming to the rest the particle returns to the starting point with velocity v, the coefficient of friction between the partice and the plane is

A particle is projected directly along a rough plane of inclination theta with velocity u. If after coming to the rest the particle returns to the starting point with velocity v, the coefficient of friction between the partice and the plane is

The air of density rho and moving with a velocity v strikes perpendicular the inclined surface of area A and of a wedge kept on a horizontal surface. The mass of the wedge is m . Assuming the collisions to be perfectly inelastic, the minimum value of the coefficient of friction between the wedge and the ground so that the wedge does not move is (Assume mass of particles of air is negligible)