What is the net force in the y-direction?
a box experiencing a gravitational force of 600 n is being
pulled to the right with force of 250 n. a 25 n frictional force
acts on the box as it moves to the right.
on
25n
225 n
250 n

0 N

Explanation:

The box moves to the right. This means that its acceleration along the y (vertical) direction is zero.

According to Newton's second law:

where

is the net force

m is the mass

a is the acceleration

Along the y-direction, the acceleration is zero: a = 0, so the net force along this direction must also be zero:

This means that the reaction force of the surface (upward) balances the weight of the box (downward).

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