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  4. A block of mass 1 kg is pushed up a surface inclined to horizontal at an angle of 30° by a force of 10 N parallel to the inclined surface as shown in the figure. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/eb9ba1ec54e3ab5f3edf2c2ec15e0b8d-.jpeg /> The coefficient of friction between block and the incline is 0.1. If the block is pushed up by 10 m along the incline the work done by applied force is

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Q. A block of mass $1\, kg$ is pushed up a surface inclined to horizontal at an angle of $30^°$ by a force of $10\, N$ parallel to the inclined surface as shown in the figure.
image
The coefficient of friction between block and the incline is $0.1$. If the block is pushed up by $10 \,m$ along the incline the work done by applied force is

Work, Energy and Power

Solution:

Work done by applied force is
$W= Fd= 10\, N \times 10\,m= 100\, J$