If multiple forces are acting on an object, which statement is always true.
The net force on the object is the sum of all the individual forces acting on it.
If multiple forces are acting on an object, which statement is always true?
ANSWER-The acceleration will be directed in the direction of the net force.
If a ball is accelerating down through the air with no horizontal motion, what must be true about the net forces acting on the ball?
ANSWER-The gravitational force is greater than the drag.
A boy who exerts a 300-N force on the ice of a skating rink is pulled by his friend with a force of 75 N, causing the boy to accelerate across the ice. If drag and the friction from the ice apply a force of 5 N on the boy, what is the magnitude of the net force acting on him?
ANSWER-70N
Four friends push on the same block in different directions. Allie pushes on the block to the north with a force of 18 N. Bill pushes on the block to the east with a force of 14 N. Chris pushes on the block to south with a force of 23 N. Debra pushes on the block to the west with a force of 20 N. Assuming it does not move vertically, in which directions will the block move?
ANSWER-south and west
Two teams are playing tug of war. The tables show the members of each team and how much pulling force each team member applies to the rope.
If Team A pulls to the right and Team B pulls to the left, what is the total horizontal net force applied to the rope?
ANSWER-20 N to the left
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If multiple forces are acting on an object, the statement that is always true is that the net force acting on the object is equal to the vector sum of all individual forces acting on it.
To determine which statement is always true when multiple forces are acting on an object, we need to consider the different scenarios and principles of force.
1. If the net force on the object is zero, then the object is in equilibrium.
- To find the net force on an object, you need to sum up all the forces acting on it and apply Newton's second law (F = ma).
- If the net force is zero, it means that the forces are balanced, and the object will either remain at rest or continue moving with a constant velocity.
- Therefore, the statement "If the net force on the object is zero, then the object is in equilibrium" is always true.
2. If the forces acting on the object are unbalanced, then the object will accelerate.
- When the net force acting on an object is not zero, the object will experience acceleration.
- The object will move in the direction of the net force and its acceleration will be proportional to the net force divided by its mass (a = F/m).
- Thus, the statement "If the forces acting on the object are unbalanced, then the object will accelerate" is always true.
It's important to note that these statements assume ideal conditions, such as the absence of friction and other external influences. In real-world situations, additional factors may affect the motion of an object.