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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. |
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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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