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When a N parachutist opens his chute and experiences 800 N of air resistance the net force on him is?
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A 500-N parachutist opens his chute and experiences an air resistance force of 800 N The net force on the parachutist is?
300 N upward
What force slows down a parachutist?
up thrust or air resistance.
Ratio of resistance force to effort force?
resistance force
When you place a ball at the top of a hill and it accelerates towards the bottom of the hill it probably also experiences?
rolling friction, air resistance and gravitational force
What is the meaning of resistance force?
Resistance force is the force which an effort force must overcome in order to do work on an object via a simple machine. Resistance force, like most other forces, is measured in newtons or in pound-force. Resistance force is used to calculate the work output using the equation: Work output = Resistance force * resistance distance
A 500-N parachutist opens his chute and experiences an air resistance force of 800 N The net force on the parachutist is?
300 N upward
If a 500 N parachutist opens their chute giving an air resistance force of 900 N what is the net force?
If the falling parachutist has a downward force of 500 N, and the air resistance force is 900 N (negative), then the net force is:500 N - 900 N = -400 N So, the parachutist gets a net upward force, causing him to decelerate while continuing to move downward, due to gravity.
The force which slows down a parachutist?
Air resistance or upthrust :)
What force slows down parachutist?
'Drag' which is air resistance.
What force slows down a parachutist?
up thrust or air resistance.
What is the force that slows a parachutist down as they fall through the air?
Air Resistance or friction with the air.
What is the force that slow a parachutist down a they fall through the air?
Air Resistance or friction with the air.
When a parachutist is moving with a constant speed what happens?
There are two possibilities. One is that he is falling at a constant (positive) speed. In this case, the downward force of gravity is exactly offset by the upward force of drag or air resistance. The parachutist is said to have reached terminal velocity. The second possibility is that he is moving downwards at a constant speed of zero. He has hit the ground! The parachutist may be said to have reached a terminal situation!
What force would change if a parachutist opens the parachute during the fall What will happen to the net force and acceleration over time after that?
At terminal velocity (forces balanced): drag coefficient changes when chute is opened, increasing drag force , net force is upward, deceleration takes place to new (lower) terminal velocity.
Why does a parachutist have two terminal velocities?
Because the drag coefficient increases when the chute opens..Force down (newtons) = mass (m) * acceleration due to gravity (g)Force up (newtons) = velocity2 * drag coefficient.Terminal velocity is where up and down forces balance.Say mass (m) = 100 kg, g = 9.82, then force down = m * g = 982 newtons, say terminal velocity (v) prior to chute opening = 70 m / s, then force down = force up so 982 = v2 * drag coefficient, so drag coefficient = 982 / 4900 = 0.2without chute.Terminal velocity with chute open, say 8 metres / sec, so drag coefficient= 982 / 64 = 15.34 with chute open.
What kind of force opposes the motion of parachute?
Air resistance acts up. Weight acts down. When they are equal in size, the parachutist falls at terminal velocity, without accelerating. Air resistance, like all frictional forces is electromagnetic.
Which force stops a parachutist falling to earth uncontrollably?
Upthrust
