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B. You are approaching a stoplight moving with a velocity of 42.0 m/s. The light turns
yellow, and you apply the brakes and skid to a stop. If your acceleration is 10.0 m/s2,
determine the displacement of the car during the skidding process

Respuesta :

tbricker

Answer:

Time needed is 2.5 seconds. The distance covered is 31.3 m

Explanation:

Answer:

displacement of the car will be 88.2 m

Explanation:

As we know that initial speed of the car is given as

[tex]v_i = 42 m/s[/tex]

after complete stop the final speed of the car is

[tex]v_f = 0[/tex]

now the deceleration caused due to applied brakes is given as

[tex]a = 10 m/s^2[/tex]

now by kinematics we will have

[tex]v_f^2 - v_i^2 = 2 a d[/tex]

[tex]0 - 42^2 = 2(-10)d[/tex]

[tex]d = 88.2 m[/tex]

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