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Calculate the work done by the tension during a period of $8$ seconds.
Mathematics 9709 · AS & A Level · Energy, work and power
Energy, work and power — practice question
A block is fastened to one end of a light inextensible string. The string pulls the block along a horizontal surface at a speed of $2\,\text{m s}^{-1}$. It is inclined at $20^\circ$ to the horizontal, and the tension is $25\,\text{N}$.