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Nov 2019 p42 q3
3672
A particle P of mass 0.3 kg is held in equilibrium above a horizontal plane by a force of magnitude 5 N, acting vertically upwards. The particle is attached to two strings PA and PB of lengths 0.9 m and 1.2 m respectively. The points A and B lie on the plane and angle APB = 90° (see diagram). Find the tension in each of the strings.
Solution
To solve for the tensions in the strings, we resolve the forces vertically and horizontally.