33. A lift is moving up with an acceleration equal toatdue to gravity. The apparent weight of a 60 kg man stin lift is

33. A lift is moving up with an acceleration equal toatdue to gravity.

1.	33. A lift is moving up with an acceleration equal toatdue to gravity. The apparent weight of a 60 kg man stin lift is
Answer» <p>See , when the lift is accelerating upwards ,</p><p>Suppose uniform upward acceleration of the man in lift = a</p><p>hence , net upward force on the man , F = ma & the reation offered be R</p><p>Itss clear That ,R-mg = F</p><p>hence , R = m(g+a) , this is the expression for apparent weight , now on putting the given values</p><p>R = 60* ( g + g/5 ) = 60 * 12 = 720Kg wt</p> <p>but it's ans is 72 kgwt</p>