A vibration in a beam caues the load to sway up and down 2.8 inches 24 tmes in a minute. Timing of the vibration starts at maximum (upward) deflection.
i) If Y (t) represnts the deflection (in inches ), then write out an expression for y(t)
ii) what is y(t) after 2.8 s?
iii) when (in s) does the deflection first reach 1.0 inch below equilibrium?