A block is projected with speed 20 m/s on a rough horizontal surface. The coefficient of friction `(mu)` between the surface varies with time (t) as shown in figure. The speed of body at the end of 4 second will be `(g=10m//s^(2))`

A small body is projected with a velocity of 20.5 ms^(-1) along rough horizontal surface. The coefficient of friction (mu) between the body and surface changes with time t (in s) as the the body moves along the surface. Find the velocity at the end of 4s in m/s

A small body is projected with a velocity of 20.5 ms^(-1) along rough horizontal surface. The coefficient of friction (mu) between the body and surface changes with time t (in s) as the the body moves along the surface. Find the velocity at the end of 4s in m/s

block is moving on a rough surface. At time t=0, speed of the block is 20 m/s. Coefficient of friction ( mu ) between block and surface varies with time (t) as shown in figure. The magnitude of velocity of particle after t = 2 second is ( g = 10 ms^-2 )

A block is moving on a rough surface. At time t = 0, speed of the block is 20 m/s. Coefficient of friction (mu) between block and surface varies with time (t) as shown in figure. The magnitude of velocity of particle after t = 2 second is (g = 10 ms^-2)

block is moving on a rough surface. At time t=0, speed of the block is 20 m/s. Coefficient of friction ( mu ) between block and surface varies with time (t) as shown in figure. The magnitude of velocity of particle after t = 2 second is ( g = 10 ms^-2 )

A small body of mass 1kg is projected with initial velocity 10sqrt2 m//s on a rough horizontal surface. The coefficient of friction between the body and surface varies as mu = 5x where x is the displacement of the body. The distance travelled by the body before coming to rest__

A block of mass m is moving on a rough horizontal surface. mu is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

A 20 kg block is originally at rest on a horizontal surface for which the coefficient of friction is 0.6 . A horizontal force F is applied such that it varies with time as shown in the figure (a) & (b). If the speed of the block after 10 s is 8v then find v . ( Take g=10m//s^(2) )