Question

.a car travelling at a speed of 20 meter per second apply break within 10 minute what is the acceleration of car ​

Answer 1

Answer:

-1/30 m/s^2 is the correct answer

Answer 2

Answer:

-1/30 m/s^2

Explanation:

GIVEN :

u = 20m/s

v = 0. (since the car stops)

t = 10min = 10×60s = 600s

BY THE 1ST KINEMATIC EQUATION WE GET,

v = u + at

at = v - u

a = (v - u) /t

a = ( 0 - 20)/600

a = - 20/600

a = - 1/30 m/s^2

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