If all of the forces acting on an object balance so that the net force is zero, then

(A) the object must be at rest

(B) the object's speed will decrease

(C) the object will follow a parabolic trajectory

(D) the object's direction of motion can change, but its speed cannot

(E) None of the above

Question

Physics

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5 July, 23:00

If all of the forces acting on an object balance so that the net force is zero, then

(A) the object must be at rest

(B) the object's speed will decrease

(C) the object will follow a parabolic trajectory

(D) the object's direction of motion can change, but its speed cannot

(E) None of the above

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Answers (1)

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Monica Bray · Answer 1

The answer is (A) the object must be at rest.

When all of the forces acting on an object balance, the net force is zero and hence the object will not move.

Yes, the direction might also change under some special circumstances.

If all of the forces acting on an object balance so that the net force is zero, then(A) the object must be at rest(B) the object's speed will decrease(C) the object will follow a parabolic trajectory(D) the object's direction of motion can change, but its speed cannot(E) None of the above

If all of the forces acting on an object balance so that the net force is zero, then

(A) the object must be at rest

(B) the object's speed will decrease

(C) the object will follow a parabolic trajectory

(D) the object's direction of motion can change, but its speed cannot

(E) None of the above