Question

three forces. F1=15N, F2=20N and F3=50N the mass of the object is 7.0kg
a. determine the normal force?
b. what is the acceleration of the object?

Answer 1

well for part be Newtons second law states the sum of all forces equals mass times acceleration

Answer 2

that be should be the letter b

Answer 3

and the normal force is equal to mass times gravity

Answer 4

I forgot to mention that the normal force will be a negative number since the formal way to say it is N=mgcos(angle), that angle since it is not on a incline would be 180 and cos(180) is -1 of essentially the equation for normal force is N=-mg