0
How do you determine the net force on an object?
Decide which direction is positive motion.
Motion is the opposite direction is negative
The forces must in a straight line!!
Add all the forces in straight line acting on the object.
Example
To the right is positive
A 5 N force pushes a 10 Kg object to the right.
A 2 N force pushes the same 10 Kg object to the left.
The 5 N forces is positive and the 2N force is negative
Net force = +5 N - 2 N = + 3 N
To determine the acceleration use Newton's 2nd law of motion
F = Mass * acceleration
+ 3 N = 10 Kg * a
a = 10 Kg ÷ + 3 N
a = +3 ⅓ m/s^2
The positive sign means the object is accelerating to the right!!
If the forces are not linear, you must use vectors, but the net force in any direction is still the sum of the vectors in that direction.
What else can I help you with?
What is the net external force formula used to calculate the overall force acting on an object?
The net external force formula is: Fnet ma, where Fnet is the net external force, m is the mass of the object, and a is the acceleration of the object.
What will cause acceleration?
Acceleration is caused by a change in an object's velocity, which can result from a change in speed, a change in direction, or a combination of both. It is the result of a net external force acting on the object according to Newton's second law of motion, F = ma, where F is the net external force, m is the mass of the object, and a is the acceleration.
What causes an object slow down or speed up?
an external net force acting on it
For an object of mass m in free fall on the moon with no air resistance, what net external force acting on the object?
I don't think any external force is in place, considering there is no gravity on the moon.
What are the condition for an object stay at rest keep moving at constant velocity?
An object will remain at rest if the net force acting on it is zero. An object will continue to move at a constant velocity if the net force acting on it is zero and there is no external force to change its velocity.
How does a zero net force affect an object's motion?
If an object experiences a zero net force, it will either remain at rest or continue moving at a constant velocity in a straight line according to Newton's first law of motion. This means the object's motion will not change unless acted upon by an external force.
An object experiences a net zero external unbalanced force is it possible for the object to be travelling with a non-zero velocity?
Yes, it is possible for an object to be traveling with a non-zero velocity even if it is experiencing a net zero external unbalanced force. This is because the object may have inertia, which allows it to maintain its current velocity unless acted upon by an external force.
What force can speed up slow down or turn direction of the net force when acted upon?
The net force can be influenced and altered by external forces such as friction, air resistance, or an applied force from another object. These forces can either speed up, slow down, or change the direction of the net force acting on an object.
If a non zero net force acts on an object what does the object do?
-- When the net force on an object is not zero, the object undergoes accelerated motion.-- The magnitude of the acceleration is the ratio of the net force to the object's mass.-- The direction of the acceleration is the same as the direction of the net force.
Which way is her net force vector pointing?
The net force vector is pointing in the direction of the overall forces acting on the object. It is the vector sum of all external forces acting on the object, indicating the direction and magnitude of the resultant force.
Can normal force cause movement?
The normal force is a reaction force that a surface exerts on an object in contact with it to prevent the object from passing through the surface. It does not directly cause movement but rather supports or counteracts other external forces to maintain an object's equilibrium. Movement is typically caused by a net external force acting on an object.
What is net force on an object at rest?
The net force on an object at rest is 0.
