The car 5 seconds after the start of movement reached a speed of 72 km / h, which is equal to the acceleration per second.
| November 30, 2020 | education
The initial speed is zero, the final speed is 72 km / h, the time is given for 5 s. There is an acceleration formula that requires only these values.
a = (vk-vн) / t = (72-0) / 5 = 14.5 m / s ^ 2
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