mhanson2368 mhanson2368
  • 04-03-2020
  • Engineering
contestada

Knowing that v = –8 m/s when t = 0 and v = 8 m/s when t = 2 s, determine the constant k. (Round the final answer to the nearest whole number. You must provide an answer before moving on to the next part.) k = m/s4

Respuesta :

beingteenowfmao
beingteenowfmao beingteenowfmao
  • 04-03-2020

Answer:

a)We know that acceleration a=dv/dt

So dv/dt=kt^2

dv=kt^2dt

Integrating we get

v(t)=kt^3/3+C

Puttin t=0

-8=C

Putting t=2

8=8k/3-8

k=48/8

k=6

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