If you know the object's mass, you can observe its motion, calculate its acceleration, and use Newton's Second Law to calculate the net force. For example, if the object doesn't move, the net force must be zero.If you know some details about the physical situation in some physics problem, you can often calculate the individual forces, and then add them up (using vector addition).
One way is to identify all the individual forces acting on the object, measure the magnitude
and direction of each one, then add them all up vectorially.
The much easier way is to measure the objects's acceleration and its mass. Then the net force
on it is in the same direction as its acceleration, and the magnitude of the force is
(the object's acceleration) x (the object's mass).
You add up all the forces - using vector addition. You would also need to consider the sum of the turning moments of the forces.
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an object's mass
The unbalanced force acting on an object equals the object's mass times it acceleration. The equation to find force is as follows.Force=mass*accelerationf=mv
Newton's Second Law says force = mass * acceleration. If you push on two objects with the same force, the object with the smaller mass will have a greater acceleration.
0 velocity 0 acceleration The forces on the object are balanced: it is in equilibrium. (The forces are balanced on any object with 0 acceleration, even if it is moving.)
Archeologists determine how old an object is, by using Carbon Dating.
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False. You will know nothing at all about any force acting perpendicular to the direction of motion.
If you meant to say mass instead of weight, the acceleration of an object is inversely proportional to mass, because F=ma. However for falling objects where acceleration is equal to gravity, the weight is not a variable.
an object's mass
-- the object's mass -- the net force acting on it
That's the object's acceleration.
The only "weigh" to determine the mass of an object is to compare it with the mass of a known object. The mass of an object is determined by force and acceleration.
Changing the magnitude or direction of forces exerted on an object changes the net force (sum of all forces) exerted on the object. The net force exerted on an object is defined as mass times acceleration (F = ma), where mass, m, is constant. This means that when the net force exerted on the object changes in magnitude (or direction), its acceleration will also change in magnitude (or direction). In addition, acceleration is defined as the change in velocity, so when the magnitude (or direction) of acceleration changes, the magnitude (or direction) of velocity will also change.
the mass (m) of an object times its acceleration (a) is the force (f) exerted on the object. f=ma
inertial mass