When weight acting downwards is equal to air resistance acting upwards why is the object falling???
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if net forces on an object is zero, then the object will continue at constant speed as before.
if the previous speed was zero, then it will stay zero. if the previous speed was falling at 1m/s, then it will continue to do so.
this is how terminal velocity occurs.
if net forces on an object is zero, then the object will continue at constant speed as before.
if the previous speed was zero, then it will stay zero. if the previous speed was falling at 1m/s, then it will continue to do so.
this is how terminal velocity occurs.
Newtons Law postulates that an object at rest *or at rest* will continue to remain at rest or uniform motion unless acted upon by an exterior force.
What this means is that if there is no (net) force acting on an object, then it’s speed won’t change, not that it won’t move.
If it’s already moving, then it’s speed will stay constant, and if it’s not moving it will equally stay constant (in this case at zero)
If you are driving a car, and you stop accelerating or braking, why do you keep on moving forward. Shouldn’t you just come to a sudden and complete stop??
(I am providing an example where your logic in incorrect, I am not advocating this position)
Or, more correctly. If you are holding the gas petal down slightly (constant gravity), and the air resistance and tire resistance has balanced out the cars acceleration, you will keep going to same speed.
Newtons Law postulates that an object at rest *or at rest* will continue to remain at rest or uniform motion unless acted upon by an exterior force.
What this means is that if there is no (net) force acting on an object, then it’s speed won’t change, not that it won’t move.
If it’s already moving, then it’s speed will stay constant, and if it’s not moving it will equally stay constant (in this case at zero)
If you are driving a car, and you stop accelerating or braking, why do you keep on moving forward. Shouldn’t you just come to a sudden and complete stop??
(I am providing an example where your logic in incorrect, I am not advocating this position)
Or, more correctly. If you are holding the gas petal down slightly (constant gravity), and the air resistance and tire resistance has balanced out the cars acceleration, you will keep going to same speed.
From the comments, you seem to be under the impression that non-zero net force causes movement. That is incorrect (although easy to see why intuition might lead you there).
Non-zero net force causes acceleration. Zero net force means zero acceleration. Zero acceleration means an object continues to move as it is currently moving.
In the case of an unmoving object, zero net force will result in it staying stationary (constant velocity). In the case you’re talking about where the object is already moving, zero net force means it will continue moving at constant velocity.
From the comments, you seem to be under the impression that non-zero net force causes movement. That is incorrect (although easy to see why intuition might lead you there).
Non-zero net force causes acceleration. Zero net force means zero acceleration. Zero acceleration means an object continues to move as it is currently moving.
In the case of an unmoving object, zero net force will result in it staying stationary (constant velocity). In the case you’re talking about where the object is already moving, zero net force means it will continue moving at constant velocity.
From the comments, you seem to be under the impression that non-zero net force causes movement. That is incorrect (although easy to see why intuition might lead you there).
Non-zero net force causes acceleration. Zero net force means zero acceleration. Zero acceleration means an object continues to move as it is currently moving.
In the case of an unmoving object, zero net force will result in it staying stationary (constant velocity). In the case you’re talking about where the object is already moving, zero net force means it will continue moving at constant velocity.
Force causes changes motion.
If an object is moving it will continue moving until a force acts to stop it.
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