Question

A car starts from rest and attains a velocity of 20 m/s in 2 seconds . find it's acceleration​

Answer 1

Answer:

200 metres

Explanation:

Given:

Initial velocity = u = 0 m/s

Final velocity = v = 20 m/s

Time = t = 20 seconds

To find :

Distance travelled (s)

First let us find the acceleration using the first equation of motion:

V=u+at

20=0+a×20

20=20a

a =

a = 1 m/s²

The acceleration of the car is equal to 1 m/s²

Now using the third equation of motion:

V²-u²=2as

20²-0²=2×1×s

400-0=2s

400 = 2s

s =

s = 200 metres

The distance travelled by the car is equal to 200 metres

Answer 2

Answer:

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