Question

particle starts from rest with acceleration of 2 m/sec2

. What is the velocity of the particle at

the end of 6 seconds?​

Answer 1

Answer

• Velocity of the particle at the end of 6 s is 12 m/s

Given

• Particle starts from rest with acceleration of 2 m/s²

To Find

• Velocity of the particle at   the end of 6 seconds

Solution

Initial velocity , u = 0 m/s

Acceleration , a = 2 m/s²

Final velocity , v = ? m/s

Time , t = 6 s

We know that , " Acceleration is defined as rate of change of velocity "

$\implies \tt a=\dfrac{(v-u)}{t}\\\\\implies \tt 2=\dfrac{(v-0)}{6}\\\\\implies \tt 2 \times 6=v\\\\\implies \tt v=12\ m/s$

More Info

Equations of motion :

• v = u + at
• s = ut + ¹/₂ at²
• v² - u² = 2as
• Sₙ = u + ᵃ/₂ [ 2n - 1 ]