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 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 )

(i) Two bodies of masses m_(1)(m_(2) gt m_(1)) are connected by a light inextensible string which passes through a smooth fixed pulley. What is the instantaneous power delivered by an external agent to pull m_(1) with constant velocity vec(V) ? (ii) A small body of mass m is located on a horizontal plane at any point O. The body acquires a horizontal velocity v_(0) . Find the mean power developed by the friction force during the motion, if the coefficient of friction mu=0.27, m=1.0 kg and v_(0)=1.5m//s .

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 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

A small body of mass m moving with velocity v_(0) on rough horizontal surface, finally stops due to friction. Find, the mean power developed by the friction force during the motion of the body, if the frictional coefficient mu =0.27,m=1 kg and v_(0)=1.5 ms^(-1) .