A small body of mass m is located on a horizontal plane at the point O. The body acquires a horizotal velocity u. Find:
(a) The mean power developed by the friction force during the whole time of motion, if the friction coefficient is k.
(b) The maximum instantaneous power developed by the friction force, if the friction coefficient varies as k=ax, where `alpha` is a constant and x is the distance from the point O.

A small body of mass m is located on a horizontal plane at the point O. The body of mass m is located on a horizontal plane at the point O. The body acquires a horizontal velocity v_0 . Find, (a) the mean power developed by the friction force during the whole time of motion, if the friction coefficient k=0.27 , m=1.0kg , and v_0=1.5m//s , (b) the maximum instantaneous power developed by the friction force, if the friction coefficient varies as k=alphax , where alpha is a constant, and x is the distance from the point O.

An object of mass (m) is located on the horizontal plane at the origin O. The body acquires horizontal velocity V. The mean power developed by the frictional force during the whole time of motion is ( mu= frictional coefficient )

A small body of mass m is located on a horizontal plane at the point O. The body acquires a horizontal velocity v_0 . Find the mean power developed by the friction force during the whole time of motion, if the frictional coefficient mu=0.27 , m=1.0kg and v_0=1.5ms^-1 .

A small body of mass m is located on a horizontal plane at the point O. The body acquires a horizontal velocity v_0 . Find the mean power developed by the friction force during the whole time of motion, if the frictional coefficient mu=0.27 , m=1.0kg and v_0=1.5ms^-1 .

A small body of mass m is given velocity v_0 at point O on rough horizontal surface. (a) Find the mean power developed by the friction force during the whole time of motion if the friction coefficient is constant and equal to mu_0 (b) Find the maximum instantaneous power developed by the friction force, if the friction coefficient varies as mu=mu_0x , where mu_0 is a constant and x is the distance from the point O .

A small body of mass m lies on a horizontal plane. The body is given a velocity v_0 , along the plane. (a) Find the mean power developed by the friction during the whole time of motion, if friction coefficient is mu = 0.3, m = 2.0 kg and v_0 = 3 m/s. (b) Find the maximum instantaneous power developed by the friction force, if the friction coefficient varies as mu =alphax , where alpha is a constant and x is distance from the starting point