Particles A and B, of masses 4 kg and 6 kg, are connected by a light inextensible string over a smooth fixed pulley. The particles hang with the string taut and are released from rest.
(a) Find the acceleration of the particles and the tension in the string.
(b) After 2 s the string breaks. A has not reached the pulley. Find the further height that A rises after the string breaks.
From Paper 3: Statistics and Mechanics
99 marks
A box of mass 10 kg rests on rough horizontal ground. The coefficient of friction is 0.3. The box is pulled by a force of 60 N acting at 30° above the horizontal.
(a) Find the acceleration of the box.
(b) When the box reaches a speed of 6 m s-1, the force is removed. Find the further distance travelled before the box stops.
Score 0 / 17 · 0 of 2 marked
This paper is written by Plasmo in the style of the Edexcel A-Level Maths exam. It is not a past paper and is not produced or endorsed by the exam board.