(i)[5]
If the tensions in the two strings are the same, calculate the speed of P.
(ii)[3]
It is instead stated that P is moving at the least angular speed possible for motion round this circle. Determine this angular speed.
Mathematics 9709 · AS & A Level · Probability
Probability — practice question
Particle P has mass $0.2\,\text{kg}$ and is joined to fixed point A by a light inextensible string of length $0.4\,\text{m}$. A second light inextensible string of length $0.3\,\text{m}$ links P to fixed point B, which lies vertically beneath A. The particle P describes a horizontal circle whose centre lies on the line AB, and angle APB = 90^\circ$ (see diagram).
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