How much work done in pulling up a block of wood weighing 2kN for length of 10 m on smooth incline plane at angle 15^(@) with horizontal ?

How much work done in pulling up a block of wood weighing 2kN for leng

1.	How much work done in pulling up a block of wood weighing 2kN for length of 10 m on smooth incline plane at angle 15^(@) with horizontal ?
Answer» `9.82`J 89 J `4.35` kJ `5.17` kJ Solution :Force applied for displacing BODY on smooth incline plane `F = ma = MG sin alpha = W sin alpha ` Now `sin alpha =sin 15^(@) XX 0.2588` ` F = 0.5176 xx10^(3)N` ` :. "Work W" =F.d ` `= 0.5176 xx10^(3) xx10` ` =5.17 xx10^(3) xx10` ` = 5.17 xx10^(3)J = 5.17 kJ `