A body of mass 2 kg is being dragged with uniform velocity of 2 m / s on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.20. The amount of heat generated in 5 sec is
. `(4.2"joule"//cal and g=9.8 m//s^(2))`

A body of mass 2 kg is dragged with a velocity of 2 m/s on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.10. Calculate the amount of heat generated in 5 sec (J=4.2"joule"//calandg=9.8m//s^2)

A body of mass 2 kg is placed on rough horizontal plane. The coefficient of friction between body and plane is 0.2 Then,

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 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 block of mass 10 kg is sliding on a surface inclined at 30^(@) with horizontal . If coefficient of friction between the block and the surface is 0.5 , find acceleration produced in the block . Take g = 9.8 m //^(2) .

A block of mass 50 kg slides over a horizontal distance of 1m. If the coefficient of friction between their surface is 0.2, then work done against friction is (take g = 9.8 m//s^(2) ) :

A block of mass 50 kg slides over a horizontal distance of 1m. If the coefficient of friction between their surface is 0.2, then work done against friction is (take g = 9.8 m//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