A 10.4 kg child sits in a 4.1 kg high chair.

(a) Find the normal force exerted by the chair on the child.
N

(b)Find the normal force exerted by the floor on the chair.
kN

1 answer

(a) The force exerted by the chair on the child equals the child's weight.

(b) Chair weight + Child's weight

Masses must be multiplied by g to get weight, which will be in Newtons.