Question

A car travels with the velocity of 10 m/s when the brake is applied the car came to rest in 2 sec What is the retardation of the car​

Answer 1

⭐ Given

• initial velocity (u)= 10m/s

• Time (t) = 2 second

• Final velocity(v) = 0

⭐ To find

• retardation (a) = ?

⭐ Solution

$\implies$a = $\dfrac{v - u}{t}$

$\implies$a = $\dfrac{0 - 10}{2}$

$\implies$a = $\dfrac{-10}{2}$

$\purple{ ⟹}$$\purple{ a = 5m/s²}$

Hence the retardation is -5m/s

Hope it helps

Answer 2

Answer:

a = (v - u)/t

a = (0 - 10)/2

a = -10/2

a = -5

HENCE THE RETARDATION IS -5

hope it helps u