Question

If a car increases in velocity from 5 m/s to 15 m/s in three seconds, what is its acceleration?

Answer 1

Answer:

u= 5m/s

v= 15m/s

t= 3 sec

a= v-u/t

a = 15-5 / 3

   =10/3

   = 3.33 m/s2

Answer 2

The acceleration is 3.33m/s².

Given:

A car increases in velocity from 5 m/s to 15 m/s in three seconds.

To Find:

The acceleration.

Solution:

To find the acceleration we will follow the following steps:

As we know,

When validity changes at many instants during the motion of an object then acceleration is produced.

Also,

The change in velocity per unit of time is known as acceleration.

Now,

$Acceleration = \frac{v - u}{t}$

Here,

v = 15m/s

u = 5m/s

time = 3s

Now,

In putting values we get,

$Acceleration = \frac{15 - 5}{3} = \frac{10}{3} m {s}^{ - 2} = 3.33m {s}^{ - 2}$

Henceforth, the acceleration is 3.33m/s².

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