Dynamics L8 Worked example 2 (ENGR5004) - Revisica

Dynamics L8 Worked example 2TutorialOld spec ENGR216Third5 min

ENGR216 Dynamics L8 worked example 2 (slides 12-13) official answers

A 2 kg block B slides on a smooth horizontal table. It is connected by a light cord, which passes through a hole at the centre of the table, to a 15 kg cylinder A hanging at rest below the table. Block B moves on a circle about the hole at a constant speed of 10 m/s. Find the radius $r$ of the circular path. Take $g = 9.81$ m/s $^2$ .

Block B moves in a circle of radius r on a smooth table; the cord runs through the central hole to cylinder A hanging underneath.

Formulas you may need

n-t equation of motion: $\sum F_n = m\dfrac{v^2}{\rho}$ (learn this)

r =m

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