Two snowcats in Antarctica are towing a housing unit to a new location, as
shown in Fig. 4-38.
The sum of the forces
Fa and Fg exerted
on the unit by the
L
horizontal cables is
parallel to the line L,
and
32°
Fa = 4500 N.
Determine FB and
the magnitude of
FA + FB.
480

35.98  million  mile my friend

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.