Mathematics (AS & A Level) · May / June 2026 · Paper 43 · Question 3
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A block of mass m kg is pulled up a rough plane inclined at an angle of 30° to the horizontal by a constant force of magnitude 20 N. This force acts parallel to a line of greatest slope of the plane. The acceleration of the block is ms 2 2 - . The coefficient of friction between the block and the plane is 0.4. Find the value of m. [4]
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