Question

A vehicle moving with a velocity of 10 m/s stops after 5 seconds. Here the acceleration is __________.

Answer 1

Answer:

initial velocity is 10m/s final velocity is zero because the car stops time is 5 sec so acceleration = v-u/t after putting the values 0-10/5=-2. the acceleration shows negative sign that means the acceleration is also negative or retardation. hope it helps you

Answer 2

Answer:

-2m/s^2

Explanation:

u (initial velocity) =10 m/s

v (final velocity) =0 m/s

t (time interval) =5s

Applying 1st equation of motion,

v=u+at

That is,

0=10+a×5

5a=-10

=>a=-2m/s^2

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