The device, consists of a beam suspended from one point and is used to find the mass of objects. a) An explanation of the principles of moments and how they apply in this situation.
b) An explanation of how it could be recalibrated to measure the value of greater masses.
( principle of moment)

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.