Verified Answer :

luana

From Second Newton's Law:

F=am
a=\(15 \frac{m}{ s^{2} }\)
m=30kg

F=\(15 \frac{m}{ s^{2} }\)
30kg=450N

AL2006

The sum of all forces applied to the object = (mass) x (acceleration)

The sum of all forces applied to the object = (30) x (15)

= 450 newtons, in the direction of the acceleration.