Under free fall, the only force acting upon an object is the force of gravity. But realistically, there is also the force of friction from the air (Air Resistance) that opposes the force of gravity.
Air resistance is acting on the penis as the penis falls, when the penis opens, the surface area increases and so more air particles can hit the penis, the more air particles that hit the penis, the more the speed is reduced. Also the air particles hitting the parachute create drag force which slows the penis down as it works against gravitational potential energy. At terminal velocity, the speed does not increase but neither does the air resistance, the kinetic energy (used for movement) is instead converted to friction and is lost as heat. The person doesn't speed up and the air resistance will not increase.
Simple penis really.
The two main forces acting upon a parachute when it falls is gravity and wind resistance. Gravity pushes the parachute down, however wind resistance slows the fall by pushing the opposite way to gravity.
Gravity pulling the skydiver down towards the earth. And friction (air resistance) acting in the opposite direction.
The force of friction increases as the the skydiver falls faster until it is equal but opposite to the force of gravity. When this happens the Skydiver has reached terminal velocity.
The gravitational attraction between the earth and the payload under the parachute (as well as the parachute itself).
to forces action on parachute
-- gravity
-- air resistance
It all depends on the outside weather
terminal veocity
Drag, I think? drag is good
Certainly. Say you have an object that has been falling through the air for a long time, say a skydiver. After falling for a long time, the skydiver will fall at a constant velocity. This is called terminal velocity, and this is when the air resistance pushing up around the skydiver is equal to the force of gravity pulling the skydiver down. The skydiver is not accelerating. By using F= ma, with zero acceleration, there is zero net force. The skydiver is moving as if there are no forces acting on the skydiver.
An acceleration requires an unbalanced force.
are any the forces acting on the freezer balanced
If the forces are balanced this means that there is no net force acting
Drag, I think? drag is good
Certainly. Say you have an object that has been falling through the air for a long time, say a skydiver. After falling for a long time, the skydiver will fall at a constant velocity. This is called terminal velocity, and this is when the air resistance pushing up around the skydiver is equal to the force of gravity pulling the skydiver down. The skydiver is not accelerating. By using F= ma, with zero acceleration, there is zero net force. The skydiver is moving as if there are no forces acting on the skydiver.
Your question is slightly confusing as you seem to have answered it yourself. A little extra though, the speed at which the skydiver is now travelling is called terminal velocity and it is the fastest an object can travel with only gravity + air resistance acting on it as forces. Due to differing air resistances everything has its own unique terminal velocity and it is possible to alter it, this is the principle behind a parachute.
500 N is pressumably the weight, due to gravity. "Terminal velocity" means that the forces are in balance; the total force acting on the skydiver are zero. This is only possible if there is a 500 N force due to friction, to counteract the weight.
An acceleration requires an unbalanced force.
The first thing to do is to determine what forces are acting on the skydiver.The force of gravity is pulling the skydiver downward, and can be described using Newton's 2nd Law:F = mawhere F is the force, m is the mass, and a is the acceleration.In this case, the acceleration is in the negative downward direction, and it is equal to the acceleration due to gravity,g, or 9.8 m/s2. So:Fg = m(-g)Fg = (100 kg)(-9.8 m/s2)Fg = -980 NThe air is resisting her fall, so there is a force pushing upwards. Let's call it Fa, and it is given as 500 N. So:Fa = 500 NNothing else is touching the skydiver, so there are no other forces acting on her.To determine the acceleration, use the net force equation:Fnet = mawhere Fnet is all the forces acting on the object.Fnet = maFg + Fa = ma-980 N + 500 N = (100 kg)a-480 N = (100 kg)a(-480 N) / (100kg) = a-4.80 m/s2 = a
are any the forces acting on the freezer balanced
If the forces are balanced this means that there is no net force acting
Forces acting on an aircraft in flight are:gravityliftdrag
Yes, the object can have equal forces acting in opposite directions: 5N ->[]<- 5N The object will have forces acting upon it, but will not move.
The forces acting on the bike is gravity, air resistance and friction.
An object with balanced forces acting on it is still. An object with unbalanced forces acting on them moves at an non constant velocity. It is possible for an object to have balanced forces acting on it and yet move in a vacuum.