Physics, 25.10.2020 19:10 jaylene12345678910

a particle moves with a constant acceleration of 2 m/s^2 in x direction. The distance travelled in fifth second is 19 m. calculate the distance travelled after 5 second.

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Answer from: mochoa4

Let u be the particle's initial velocity. Then the distance traveled in the first 5 seconds is such that

19 m = u (5 s) + 1/2 (2 m/s²) (5 s)²

Solve for u :

u = (19 m - 1/2 (2 m/s²) (5 s)²) / (5 s) = - 1.2 m/s

That is, the particle was moving in the negative x direction with speed 1.2 m/s. The particle's velocity after 5 seconds is then

v = u + (2 m/s²) (5 s) = 8.8 m/s

So, in the following 5-second interval, assuming it maintains the same acceleration, the particle travels a distance of

x = v (5 s) + 1/2 (2 m/s²) (5 s)² = 69 m

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

Ibelieve the correct answer would be c.

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