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Artyom0805 [142]
3 years ago
5

A car traveling at 7 m/s accelerates at 2,5 m/s2 to reach a speed of 12 m/s. How long

Physics
2 answers:
Lemur [1.5K]3 years ago
4 0

Answer:

<em>The car took 2.5 seconds for this acceleration</em>

Explanation:

<u>Constant Acceleration Motion</u>

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

v_f=v_o+at

Solving for t:

\displaystyle t=\frac{v_f-v_o}{a}

The car was traveling at v0=7 m/s, accelerated at 2.5 m/s^2, and reached a speed vf=12 m/s. Calculating the time taken:

\displaystyle t=\frac{12-7}{2.5}

\displaystyle t=\frac{5}{2.5}

t=2 sec

The car took 2 seconds for this acceleration

bearhunter [10]3 years ago
3 0
It takes 2 seconds . (12-7) / 2.5
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