In an imaginary atmosphere, the air exerts a small force F on any particle in the direction of the particle's motion. A particle of mass m is projected upward. If a u p is the magnitude of reta

Question

In an imaginary atmosphere, the air exerts a small force $F$ on any particle in the direction of the particle's motion. A particle of mass $m$ is projected upward. If $a_{u p}$ is the magnitude of retardation during ascent and $a_{d o w n}$ the acceleration during descent, then:

Options:

Answer:

B

Solution:

$a_{u p} = g - F / m$
and
$a_{d o w n} = g + F / m$
so
$a_{u p} < a_{d o w n} .$
Option B.

TestHub · Accepted Answer

a u p ​ = g − F / m and a d o w n ​ = g + F / m so a u p ​ < a d o w n ​ . Option B.

Physics - NLM Question with Solution | TestHub

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