Questions
If air resistance opposes the motion of a vertically projected body then its time of ascent and time of descent then
detailed solution
Correct option is C
while the body is going up along with gravitational force resistive force also opposes the motion hence the effective retardation increases time of ascend decreases where as while going downward gravitational force support the motion where as the resistive force opposes the motion effective acceleration decreases time of descend increases.Similar Questions
A physical quantity A is related to four observable a, b, c and d as . The percentage errors of measurement in a, b, c and d are 1 %, 3 %, 2 % and 2 % respectively. What is the percentage error in the quantity A ?
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