Question #18dea

1 Answer
Nov 27, 2016

The reactionary force #R# exerted by the man on the floor of elevator is given by

#R=m(g+f)#

where m is the mass of the man f is the acceleration of the elevator # (f =0 " here")# and g is the acceleration due to gravity #g=10ms^-2#.

So #R=m(g+f)=84kgxx10ms^-2=840N#