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Mathematics 39 Online
zarkam21:

Help

zarkam21:

1 attachment
zarkam21:

@Vocaloid

Vocaloid:

kinematics eq 4

zarkam21:

v^2=13+2(-2.1)

Vocaloid:

final velocity is already given (hint: the car is coming to a stop) you are solving for distance

zarkam21:

13=x+2(-2.1)

Vocaloid:

if the car is coming to a stop then what is the final velocity?

Vocaloid:

good, so set up the equation for delta x

zarkam21:

0=13+2x

zarkam21:

like that kind of?

Vocaloid:

v^2 = v_o ^2 + 2a*delta x plug in everything except delta x and solve for delta x

zarkam21:

0=13^2+2(-2.1)x

Vocaloid:

good, now solve for x

zarkam21:

40.24

zarkam21:

SO C

Vocaloid:

good

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