A block of mass 5kg is placed on a rough horizontal plane.A time dependent horizontal force `F=(t^(2)+2t)` N acts on the block. The friction force between the block and the plane at t=3s is (`mu=0.4`)

A block of mass 4kg is placed on a rough horizontal plane A time dependent horizontal force F =kt acts on the block (k =2N//s) . Find the frictional force between the block and the plane at t =2 seconds and t =5 seconds (mu =0.2) .

A block of mass 4 kg is placed on a rough horizontal force plane. A time dependent horizontal force F = k t acts on the block. Here k = 2 Ns^(-1) . The frictional force between the block and plane at time t = 2 s is (mu = 0.2)

A block is placed on a rough horizontal plane. A time dependent horizontal force F=K t acts on the block K is a postive constant. Accelration-time graph of the block is

A block is placed on a rough horizontal plane. A time-dependent horizontal force F=kt^(2) acts on the block. Here k is a positive constant. Acceleration -time graph of the block is

A block of mass 8 kg is placed on a rough horizontal plane. A time dependent force F=kt^2 acts on the block, where k=3N//s^2 . Coefficient of friction is 0.6 . Force of friction between the block and the plane at t=1s is

A block of mass 4kg is placed on a rough horizontal plane A time dependent force F = kt^(2) acts on the block where k = 2N//s^(2) Coefficient of friction mu = 0.8 force of friction between the block and the plane at t = 2s is

The friction force acting on the block at time t = 4 s will be

A block of mass 3kg is placed on a rough horizontal surface (mu_(s)=0.4) . A forc eof 8.7N is applied on th eblock. The force of friction between the block and floor is .

A block of mass 2 kg is placed on the floor (mu=0.4) . A horizontal force of 7 N is applied on the block. The force of friction between the block & floor is f_(s) . Find the f_(s) .

A horizontal force of 20 N is applied to a block of 10 kg resting on a rough horizontal surface. How much additional force is required to just move the block, if the coefficient of static friction between the block and the surface is 0.4 ?