Question

A car moving with a uniform velocity of 20 metre per second come to waste on the application of brakes after travelling distance 10 metre find the acceleration

Answer 1

Answer:

-20 m/s²

Explanation:

Use equation of motion

a = (v² - u²) / (2S)

= (0² - 20²) / (2 × 10)

= -400 / 20 m/s²

= -20 m/s²

Negative sign indicates that it's retardation.

Answer 2

Explanation:

Here is your answer

V=0

U=20m/s

S=10m

By Newton's third law

V^2= U^2+2as

20^2= -2(10)a

a= 400/-20

a= -20m/s^2

Mark as Brainliest.