PLEASE I HAVE A TEST AND THIS IS THE ONLY ONE I NEED HELP ON A 0.75 kg ball is rolled down a hill that has a height of 3.0 m. Determine the velocity of the ball at the bottom of the hill.

No it would not hope that

Answer///air resistance,drag;

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.

Answerit is comparative because this experiment is comparing the results of the volume at minimal pressure and then increases it; ; ;