Respuesta :
Since the chair is preventing the girl from touching the ground, The chair is exerting the force onto the girl (upwards),
and the amoutn of force would be
F = mass x gravity
F= 48 x 9.8
F = 471 N
So the answer would be 471 N upwards
and the amoutn of force would be
F = mass x gravity
F= 48 x 9.8
F = 471 N
So the answer would be 471 N upwards