A-LevelMathematicsMechanicsMay/June 2020Paper 4 Q59 Marks
A block B of mass 4 kg is pushed up a line of greatest slope of a smooth plane inclined at 30° to the horizontal by a force applied to B, acting in the direction of motion of B. The block passes through points P and Q with speeds 12ms⁻¹ and 8 ms⁻¹ respectively. P and Q are 10 m apart with P below the level of Q.
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