Lodricoeverlynmayidn
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a car's velocity increases from 20m/s to 50m/s in 10 second. what is the car's acceleration​

Sagot :

Andreaabianidn

Answer:

If a car changes its velocity at the rate of 20 m/s in 5 seconds, what is its acceleration?

In case of uniform acceleration, there are three equations of motion which are also known as the laws of constant acceleration. Hence, these equations are used to derive the components like displacement(s), velocity (initial and final), time(t) and acceleration(a). Therefore they can only be applied when acceleration is constant and motion is a straight line. Which I suppose is our case. The three equations are,

v = u + at

v² = u² + 2as

s = ut + ½at²

For the given case, we will be applying the first equation.

In case you don't know,

v = final velocity = 20 m/sec (in our case)

u = initial velocity = 0 m/sec

a = acceleration

t = time taken = 5 minute = 300 sec

So applying the values to the equation

20 = 0 + a*300

a = 20/300

a = 1/15 m/sec

Explanation:

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