when a person is walking or standing,if a vehicle pass through in the opposite direction, why that person feels air blowing towards him
2006-09-06 17:11:28 · 9 answers · asked by ajith k 1 in Science & Mathematics ➔ Physics
dear friend,
thats simple.
1. when the car moves at a great speed it pushes the air in front of it, creating a low pressure area behind the car.
2. as the air (near the surrounding) has a tendency to move from high pressure area to low pressure area, the AIR RUSHES to that place. (the same thing happens during cyclones, when there is a low pressure area...the air rushes to that area in such a tremendous speed).
this phenomena also brings air resistance to the car. that is why all sports cars are aerodynamically shaped.
Also, when the train moves at a station it is suggested to stay awat from the platform as the gushing air might pull you in and you might be crushed under the train.
i hope you understood.
best wishes
ram
2006-09-06 17:24:37 · answer #1 · answered by radpaikar 2 · 0⤊ 0⤋
Try visiting a wind tunnel and observing how the air cuts a path around objects. The car is pushing the wind out of its way. The person walking in the opposite direction feels the air being pushed away by the walker.
2006-09-07 00:17:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
All right, since air molecules can't go through the vehicle, they have to go somewhere. Displacement, the moving vehicle pushes the air to the sides and over the top of itself. This is the "breeze" you sense when a car passes.
2006-09-07 00:17:05 · answer #3 · answered by jack w 6 · 0⤊ 0⤋
Generally, the breeze is a result of a combination of Newton's Second Law of Motion and the Bernoulli Effect as applied to the objects (air, vehicle, person).
Sensations are functions of the nervous system.
2006-09-07 01:07:06 · answer #4 · answered by wireflight 4 · 0⤊ 0⤋
The moving vehicles create air waves.
2006-09-07 00:18:42 · answer #5 · answered by no nickname 6 · 0⤊ 0⤋
The moving object displaces the air by filling the space where the air had been and forces it away. This phenomenon is the wind.
2006-09-07 00:16:33 · answer #6 · answered by Call Me Babs 5 · 0⤊ 0⤋
the air current formed by the vehicle wrap around and come back at you
2006-09-07 00:15:11 · answer #7 · answered by wizard 4 · 0⤊ 0⤋
wind velocity.
to some it up... the air is not made of nothing... has many particled in it... when something big enough to move many particles around like a car moving... we feel ripples of air... if we could see this... it is KIND OF.. like dropping a rock in a pond
2006-09-07 00:14:48 · answer #8 · answered by Two Tenths Of My Two Cents 3 · 0⤊ 0⤋
Newton--(Sir Isac)
An object in motion remains in motion, and an object at rest remains at rest unless acted upon by an external force.
2006-09-07 00:15:47 · answer #9 · answered by Weatherman 2 · 0⤊ 0⤋