a box is at rest and a force of a 837 N is applied to it. IF frictional force 400 N, determine the net force?

FNet = 437N

Step-by-step explanation:

The equation for net force is

FNet  = Fa + Fg + Ff + FN.  where FNet is the net force, Fa is the applied force and Fg is the force due to gravity, Ff is the frictional force and FN is the normal force

We do not have a normal force or a force due to gravity

FNet  = Fa  + Ff

Applied force Fa = 837 N

The frictional force works opposite the applied force

Frictional force Ff = -400 N

FNet  = 837 - 400

FNet = 437N

go and ask your mom to you

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w