A boy is wearing a shirt of mass 150 g. How much force is he exerting on the dress? Do not forget to state the direction.
F= ma or mg
Where g= acceleration due to gravity
m= 150g = 0.15kg
g= 9.8m/s2
F= 0.15 x 9.8 = 1.47 N
So the force exerted is 1.47 N in upward direction