Physics, 05.10.2019 06:00 jenkinjack7654

Ajet fighter plane is launched from a catapult on an airaraft carrier. it reaches a speed of 42 mis at the end of the catapult, and this requires 2.0s. assuming the acceleration is o 63 m o 24 m o 84 m o 42 m o 16 m

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Answer from: ShadowPlayer3325

s = 42 meters

Explanation:

Initial speed of the jet, u = 0

Final speed of the jet, v = 42 m/s

Time taken, t = 2 s

Let a is the acceleration of the jet. It can be calculated using equation of kinematics as :

$a=\dfrac{v-u}{t}$

$a=\dfrac{42\ m/s}{2\ s}$

$a=21\ m/s^2$

It is assumed that the acceleration of the jet is constant. We can find the length of the catapult. It is given by s.

$s=ut+\dfrac{1}{2}at^2$

$s=\dfrac{1}{2}\times 21\times (2)^2$

s = 42 meters

So, the length of the catapult is 42 meters. Hence, this is the required solution.

Answer from: Quest

Acetic acid /əˈsiːtɪk/, systematically named ethanoic acid /ˌɛθəˈnoʊɪk/, is a colourless liquid organic compound with the chemical formula ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called glacial acetic acid. vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to polyvinyl acetate and cellulose acetate. it is classified as a weak acid since it only partially dissociates in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7 3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366 chemblchembl539 chemspider171 drugbankdb03166 echa infocard100.000.528ec number200-580-7e numbere260 (preservatives)gmelin reference1380iuphar/bps1058keggd00010 meshacetic+acidpubchem cid176rtecs numberaf1225000uniiq40q9n063p un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4) key: qtbsbxvteameqo-uhfffaoysa-n smilescc(o)=o

Answer from: Quest

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is

answer

1,500

kg • m/s.

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Ajet fighter plane is launched from a catapult on an airaraft carrier. it reaches a speed of 42 mis...