The diagram shows two particles, A and B, of masses 0.2kg and 0.1 kg respectively. The particles are suspended below a horizontal ceiling by two strings, AP and BQ, attached to fixed points P and Q on the ceiling. The particles are connected by a horizontal string, AB. Angle APQ = 45° and BQP = θ°. Each string is light and inextensible. The particles are in equilibrium. [Figure 4]

A particle P is projected with speed 20 m s¯¹ at an angle of 60° below the horizontal, from a point O which is 30 m a...

The diagram shows a uniform lamina ABCD with AB = 0.75 m, AD = 0.6m and BC = 0.9 m. Angle BAD = angle ABC = 90°. [Fig...

Two particles P and Q have masses 0.4 kg and m kg respectively. P is attached to a fixed point A by a light inextensi...

Let f(x) = (5x² + x + 27) / ((2x + 1)(x² + 9)).

The complex number 1 + 2i is denoted by u.

The line l has equation r = 4i + 3j – k + μ(i + 2j – 2k). The plane p has equation 2x – 3y – z = 4.