summerrosser04 summerrosser04

09-11-2020
Physics

contestada

A race car accelerates uniformly at 14.2 m/s2. If the race car starts from rest how fast will it
be going after 6.6 seconds.

Respuesta :

arodri04 arodri04

09-11-2020

Answer:

vf=94.4 m/s

Explanation:

acceleration is the final velocity minus initial velocity divided by time

a = (vf-vi)/t

Given:

a= 14.2 m/s^2

vi= 0 (at rest)

t = 6.6

Solve for vf

a = (vf-vi)/t

a*t=vf-vi

(14.2)*(6.6)=vf - 0

vf=94.4 m/s

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