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A block of mass 1kg is pushed up a surface inclined to horizontal at angle of 30 degree by a force of 10N parallel to the inclined surface . The coefficient of friction between block and inclination is 0.1. If the block is pushed up by 10m along the inclination , calculate(a) work done against gravity(b) work done against force of friction(c) increase in potential energy(d) increase in kinetic energy(e) work done by applied force.

Answer» A block of mass 1kg is pushed up a surface inclined to horizontal at angle of 30 degree by a force of 10N parallel to the inclined surface . The coefficient of friction between block and inclination is 0.1. If the block is pushed up by 10m along the inclination , calculate
(a) work done against gravity
(b) work done against force of friction
(c) increase in potential energy
(d) increase in kinetic energy
(e) work done by applied force.


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