208k views
5 votes
Which object has a net force of -68 N?

1) Object with a downward force of -74 N and an upward force of 31 N
2) Object with a rightward force of 53 N and a leftward force of -53 N
3) Object with a downward force of -89 N and an upward force of 89 N
4) Object with a rightward force of 103 N and a leftward force of -56 N
5) Object with a downward force of -27 N and an upward force of 27 N
6) Object with a rightward force of 34 N and a leftward force of -102 N

User StupidWolf
by
8.6k points

1 Answer

4 votes

Final answer:

The object with a net force of -68 N is the one with a rightward force of 34 N and a leftward force of -102 N.

Step-by-step explanation:

The object that has a net force of -68 N is an object with forces acting in opposite directions. To determine which object this is, we can calculate the net force for each by subtracting the force in one direction from the force in the opposite direction. For example, for an object with a downward force of -74 N and an upward force of 31 N, the net force would be (-74 N) + (31 N) = -43 N, which is not -68 N.

Object with a downward force of -74 N and an upward force of 31 N: Net force = -43 N

Object with a rightward force of 53 N and a leftward force of -53 N: Net force = 0 N

Object with a downward force of -89 N and an upward force of 89 N: Net force = 0 N

Object with a rightward force of 103 N and a leftward force of -56 N: Net force = 47 N

Object with a downward force of -27 N and an upward force of 27 N: Net force = 0 N

Object with a rightward force of 34 N and a leftward force of -102 N: Net force = -68 N

Therefore, the correct answer is the object described in option 6, which has a rightward force of 34 N and a leftward force of -102 N resulting in a net force of -68 N.

User Nathan Gabriel
by
8.3k points