A 125-lb woman stands in the center of an end-supported board and causes a midspan deflection of 1.07 in. If she flexes
Posted: Tue Jul 05, 2022 10:11 am
A 125-lb woman stands in the center of an end-supported board and causes a midspan deflection of 1.07 in. If she flexes her knees slightly in order to cause a vertical vibration, what is the frequency f, of the motion? Assume elastic response of the board and neglect its relatively small mass. OO Answer: fn = i Ma 0.33073 JUUL 1.07" Hz