Question and answer
A parachute works because the canvas of the parachute is acted upon by __________. A. interia b. gravity c. velocity d.momentum
Answer: b.gravity Parachutes enable people to land safely on the ground after they have evacuated from an airplane, helicopter or balloon. [ Parachutes work because of gravity and air resistance. Gravity is a force that attracts things on earth to stay on the planet. When an object comes out of a plane, for example, it will always fall towards the earth's surface. A parachute also obeys the
laws of gravity, moving downwards until it lands. The neat thing about parachutes is that they do not fall quickly. This is because of their surface mass. When the person wearing the parachute steps out of the plane, they begin to fall. At a predestined level of height, the person activates the parachute, causing it to open. When the parachute opens, its fabric expands and drag, or air resistance, is created. The parachute and person will continue to fall towards the earth, but their descent is rapidly slowed. This drag allows the falling person to land safely. Without air resistance, all objects would fall at the same rate, no matter if the object was a person, rock or feather. For example, a rock falls faster than a feather because it has more mass and is heavier. The rock can easily move through the air because its weight enables the rock to push air particles out of the way quickly. On the other hand, feathers are light and therefore unable to move air particles effectively. This is why a feather will float around for quite some time before it lands. The feather traps air while the rock does not. The construction of a parachute is thin material that covers a large area when opened. Air particles are trapped within the material. The trapped air makes the parachute balloon up and outwards, stretching and filling the fabric. The person attached to the parachute plays a part in the air resistance, as well. Their weight helps to work with the drag principle. This means that if the falling object is very light, there will be no resistance created (like the feather). ]
Expert answered|marissa-sarol|Points 111|
Question
Asked 6/24/2013 3:48:27 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
A parachute works because the canvas of the parachute is acted upon by __________. A. interia b. gravity c. velocity d.momentum
Weegy: A parachute works because the canvas of the parachute is acted upon by b. gravity (More)
Question
Expert Answered
Asked 6/24/2013 3:47:53 AM
0 Answers/Comments
17,179,075 questions answered
Popular Conversations
what is the mode of 3, 7, 9, 2, 5, 3, 4, 6, 1, 0 User: {3, 7, 9, 2, ...
Weegy: I assume you mean divided by and the answer would be 1 User: {3, 7, 9, 2, 5, 3, 4, 6, 1, 0} the mode of these ...
8/28/2014 10:48:20 AM| 3 Answers
x/8-6>2
8/28/2014 2:19:03 PM| 3 Answers
Control programs are also known as
8/28/2014 2:34:02 AM| 2 Answers
Which individual or entity is responsible for conducting long-range ...
Weegy: Logistics section is responsible for conducting long-range and/or contingency planning. ........... User: ...
8/28/2014 6:22:01 AM| 2 Answers
My Section supports the incident response by overseeing contracting ...
Weegy: Answer: Logistics section Chief
8/28/2014 6:22:50 AM| 2 Answers
4(x-7)=2
Weegy: x - 2 = 7 x = 7 + 2 x = 9 User: 4t-13=57
8/28/2014 7:05:07 AM| 2 Answers
14 · (4 + 3)-1
8/28/2014 10:27:42 AM| 2 Answers
The symbol for the hydronium ion is _____. H+ H3O- H3O+ OH-
Weegy: The symbol for the hydroxide ion is OH- .
8/28/2014 11:35:15 AM| 2 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
Points 2618 [Total 24218]| Ratings 4| Comments 2578| Invitations 0|Offline
S
L
1
L
Points 2232 [Total 6208]| Ratings 8| Comments 2152| Invitations 0|Offline
S
L
C
P
C
1
L
L
Points 2191 [Total 15805]| Ratings 13| Comments 2061| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 2076 [Total 17103]| Ratings 7| Comments 2006| Invitations 0|Offline
S
L
1
1
1
1
L
1
Points 1927 [Total 9634]| Ratings 2| Comments 1907| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 900 [Total 18471]| Ratings 0| Comments 900| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 559 [Total 11220]| Ratings 1| Comments 549| Invitations 0|Offline
S
1
L
L
Points 558 [Total 5122]| Ratings 0| Comments 558| Invitations 0|Offline
S
Points 411 [Total 614]| Ratings 1| Comments 401| Invitations 0|Offline
S
Points 369 [Total 369]| Ratings 2| Comments 319| Invitations 3|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.