One safety precaution that you would take when carrying out experiments using resistance wires

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

Anybody wanna ? (picture included? )

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant