Question
A solid sphere of radius $R$ is placed on smooth horizontal surface. A horizontal force $F$ is applied at height $h$ from the lowest point. For the maximum acceleration of centre of mass, which is correct?
$a =\frac{ F }{ m }$
so there is no role of height to find out the acceleration
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$(I)$ a high-pressure pulse starts travelling up the pipe, if the other end of the pipe is open
$(II)$ a low -pressure pulse starts travelling up the pipe, if the other end of the pipe is open
$(III)$ a low pressure pulse starts travelling up the pipe, if the other end of the pipe is closed
$(IV)$ a high-pressure pulse starts travelling up the pipe, if the other end of the pipe is closed


Charge density potential Electric intensity
