Question

A car strarts from rest and pick a velocity of 20m/s i 10 sec calculate displacement and acceleration

Answer 1

Since the body was at rest
So,
U or the initial velocity = om/sec

The body attained the velocity in 10 second
So,
Time = 10 second

The final velocity = 20 m/sec

Now
We know that

Acceleration = v-u/t
So,
$a = \frac{20 - 0}{10} = \frac{20}{10} = 2m \: per \: {sec}^{2}$
So,

The acceleration is equal to 2 m/sec²

Now,

We have time, initial velocity and acceleration.
So,
To get the displacement
We can apply the second equation of motion
That is
S = ut + 1/2 at²

So,
Putting the values

$s = 0 \times 10 + \frac{1}{2} \times 2 \times {10}^{2} \\ \\ s = 1 \times 100 = 100 \: m$
So

The displacement is equal to 100m

So,

The acceleration is 2 m/sec² and the displacement is 100m