Question

If a Vehicle starts from rest attain uniform velocity 20m/s in 5 seconds Calculate
Its acceleration​

Answer 1

Answer:

Given, u = 0 m/s

v = 20 m/s

t = 5s

a = v-u / t

a = 20-0/5

a = 20/5

a = 4 m/s^2

Explanation:

Answer 2

$\bigstar$ Given

A vehicle starts from rest and attains a uniform velocity of 20 m/s in 5 seconds

$\bigstar$ To Find

Acceleration

$\bigstar$ Solution

We know that

$\red{\sf \longrightarrow a=\dfrac{v-u}{t} \ m/s^{2}}$

Here

• a = Acceleration
• u = Initial velocity
• v = Final velocity
• t = Time

According to the question

We are asked to find acceleration

Therefore

We must find "a"

Given that

A vehicle starts from rest and attains a uniform velocity of 20 m/s in 5 seconds

Hence

• u = 0 m/s [starts from rest]
• v = 20 m/s
• t = 5 s

Substituting the values

We get

$\green{\sf \longrightarrow a=\dfrac{20-0}{5} \ m/s^{2}}$

$\orange{\sf \longrightarrow a=\dfrac{20}{5} \ m/s^{2}}$

Therefore

$\pink{\sf \longrightarrow a=4 \ m/s^{2}}$

Hence

$\checkmark$ Acceleration = 4 m/s²