What is the difference between a force and a net force?
Jun 22, 2020 · 5 "Net force" simply means the sum of all forces. The "unless acted upon by a net force" version is more correct. For example, as you stand or sit still, the earth pushes you up …
Average Force vs Net Force - Physics Stack Exchange
Sep 21, 2015 · There is an average force over a given period of time, and there is a net force on an object in an instant. What you're describing is really just an average forces, which you …
About constant velocity linear motion with zero net force
Aug 18, 2023 · When the expression zero net force is in the 1st law, the concept of net force actually comes from the 2nd law, which is implicitly assumed in the 1st law. If inertial motion is …
Why does "net force" being zero not mean that the parachuter …
Mar 25, 2022 · In classical mechanics, for this case, we say that the net force – the force of air resistance minus the force of weight – is zero, because the parachuter is descending at …
How can a body even move if no net force is acting on it?
Jul 21, 2019 · A force would be required to start it moving, but no force is necessary to keep it moving. Example 2: A body moving at constant velocity on a surface with friction where the …
How can a body have constant velocity when net force on it is zero?
Jun 22, 2019 · I am asking is that, if a body has a constant speed then net Force on the body is zero and force is directly associated with acceleration, so how a body even move with …
Is net work always equal to the change in kinetic energy?
Jun 29, 2019 · The only force acting on the object is the downward force of gravity acting in the same direction as the displacement of the object. Just before impacting the floor, the net …
Why is the centripetal net force always to the center?
Apr 4, 2019 · To have this acceleration, Newton's second law tells us that the body must be experiencing a resultant force always directed towards the centre of the circle. That's the logic. …
What is the net force on a rocket immediately upon ignition?
Feb 4, 2021 · After liftoff, the rocket experiences a net force: the force of thrust minus the force of gravity gives a positive net force upwards. However, at the moment of ignition, there are three …
Forces on a ball thrown upwards - Physics Stack Exchange
Mar 11, 2015 · When the ball is thrown upwards,the gravity try to pull it downwards and hence after sometime it starts coming down (when gravitational force overcome the effect of force …