Physics: Asports car moving at constant velocity travels 120 m in 5.0 s. if it then brakes and comes to a stop in 4.0 s, what is the magnitude of its acceleration assumed constant in m/s^2 and in g s g = 9.80 m/s^2

Asports car moving at constant velocity travels

Ответ:

raconteuraki

11.03.2022

The car is traveling at consta $v= \frac{space}{time}= 120/5 =24 m/s$ nt velocity.
It then stops in 4 seconds moving with uniform negative acceleration. Thus
0=v+a*t

where a is the acceleration. Therefore the acceleration is
$a=- \frac{v}{t}=-24/4=-6 (m/s^2)$
Given in g ( g=9.80 (m/s^2)

) the acceleration is
a=-6/9.81 =-0.612*g

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Ответ:

cece3467

11.04.2021

Physics

The very first option is correct, as any other answer is either incorrect in terms of optics or does not stop you from seeing the apple.

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Asports car moving at constant velocity travels 120 m in 5.0 s. if it then brakes and comes to a stop in 4.0 s, what is the magnitude of its acceleration assumed constant in m/s^2 and in g's g = 9.80 m/s^2

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