59. We neglect air resistance, which justifies setting a= –g= –9.8 m/s2(taking downas the –ydirection) for the duration of the motion. We are allowed to use Table 2-1 (with ΔyreplacingΔx) because this is constant acceleration motion. The ground level is taken to correspond to the origin of the yaxis. (a) The time drop 1 leaves the nozzle is taken as t= 0 and its time of landing on the floor t1can be computed from Eq. 2-15, with v0= 0 and y1= –2.00 m. 21112122(2.00 m)0.639 s .29.8 m/syygttg−−−= −¡===At that moment, the fourth drop begins to fall, and from the regularity of the dripping we conclude that drop 2 leaves the nozzle at
This is the end of the preview.
access the rest of the document.