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+3 votes
in Physics by (2.8k points)

A ball is thrown vertically upward. Assuming the air resistance to be constant and considerable

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Best answer

Correct answer is "The time of ascent < the time of descent"

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edited by

let f be the force of air resistance. for upward motion f acts downward.

let a1 be retardation
for the downward motion f acts upward. 
let a2=downward acceleration
thus, a1>a2
therefore t1<t2
because h=(a1.(t(to the power 2)))/2
also h=(a2.t2to thepower2)/2

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