Question

11. Two CIT-University engineering students are asked to find the height of the new CIT-U building, using a barometer instead of using barometer, they take it to the roof of the building and drop it off and observing the time it fall. One student reports a fall time of 2 sec. and the other 2.3 sec. How much does the 0.3 sec. make for the estimates of the building’s height?

Answer 1

fall time of object depend on air resistance of environment

for high air resistance fall time increases .

so 0.3 sec difference is due to air resistance .

in second case air resistance is more .