Question

18) A car has a uniform accelaration 5 ms ²
Calculate the distance
covered in 20 see (on o)​

Answer 1

Answer:

1 km or 1000 m

Explanation:

According to the given question,

a = acceleration = 5 m/s^2

t = time = 20 sec

u = initial velocity = 0 m/s

s = displacement

And we are asked to find distance.

Here, displacement can be treated as distance as it's linear motion, without change in direction.

Thus, s = distance/displacement

We know,

s = ut + 1/2 at^2

Putting the values we get,

s = 0 + 1/2 × 5 × 400

s = 5×200

s = 10,00 m

s = 1 km

Thus distance covered by the racing car in 20 sec is 1km or 1000 m when it's acceleration is 5 m/s^2 and starting from rest.

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