A body is rolling on the ground with a velocity of 1 m/s. After travelling a distance of 5m, it comes to rest. Find the coefficient of friction.Take g = 10 `m/s^2`.

A body moving on ground with a velocity of 14 m//s comes to rest due to friction after moving ove a distance of 50 m. Detennine the co-efficient of friction between the body and the ground.

A body of mass 10 kg is moving with a velocity of 100 m/s. find the force needed to stop it in 5 seconds.

A body moving on the surface of the earth at 14 "m.s"^(-1) comes to rest due to friction after covering 50 m. Find the coefficient of friction between the body and the earth's surface. Given, acceleration due to gravity = 9.8 "m.s"^(-2) .

A body of mass 2 kg is moving with a velocity of 8 m/s on a smooth surface. If it is to be brought to rest in 4 s,t hen force to be applied is

A body is projected with a velocity 20 m*s^(-1) , making an angle of 45^@ with the horizontal. Calculate (i) the time taken to reach the ground [g=10 m*s^(-2)] ,

A body of mass 2 kg is pulled with a velocity 2 m cdot s^(-1) on horizontal surface. What will be the heat produced in 5s, if the coefficient of friction between the body and the surface is 0.2? Given, J = 4.2 J cdot cal^(-1) , g = 9.8 m cdot s^(-2) .