Question

what is the acceleration of a car started from rest and acquired a velocity of 40m/s in 8 second​

Answer 1

Answer:

5 m/s²

Explanation:

car started from rest and acquired a velocity of 40m/s in 8 s

initial velocity, u = 0

final velocity, v = 40 m/s

time, t = 8 s

acceleration,

$a = \frac{v - u}{ t} \: = \frac{40 - 0}{8} = \frac{40}{8}$

5 m/s²

Answer 2

★ Given

• Initial velocity = 0

• Final velocity = 40m\s

• Time = 8 sec

★ To find

• acceleration = ?

★ solution

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

$\implies$ a = $\dfrac{40 - 0}{8}$

$\implies$ a = $\dfrac{40}{8}$

$\green{⟹}$$\green{a = 5m\s}$

Hope it helps u mate