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 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 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 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) .

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 tram is moving with an acceleration of 49 cm .s^(-2) using 50% of its motor power the remaining 50% is used up to overcome friction. Find the coefficient of friction between the wheel and the tram line.

A body is kept at rest at a distance of 10 cm from the centre of a gramophone disc. If the coefficient of friction between the body and the disc is 0.3, then for what maximum rps of the disc, will the body not be thrown off the disc?