cristobalnogued
cristobalnogued cristobalnogued
  • 17-12-2019
  • Physics
contestada

Arace car accelerates uniformly at 11.3 m/s2. If the race car starts from rest how fast will it
be going after 6.7 seconds.

Respuesta :

opudodennis
opudodennis opudodennis
  • 24-12-2019

Answer:

75.71 m/s

Explanation:

From equation of motion, acceleration is given by

[tex]a=\frac {v-u}{t}[/tex]where v is the final velocity, u is the initial velocity and t is time taken.

Making v the subject of the above formula

v=at+u

Substituting 6.7 s for time, t and 11.3 for a and taking u as zero since it starts from rest

v=11.3*6.7=75.71 m/s

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