Question

An object starting from rest travels with an acceleration of 5m/s2. What will be velocity after 3 s? Answer and explanation note book?

Answer 1

GiveN :

• Initial velocity (u) = 0 m/s
• Acceleration (a) = 5 m/s²
• Time interval (t) = 3 s

To FinD :

• Final velocity

SolutioN :

Use 1st equation of motion :

⇒ v = u + at

⇒ v = 0 + 5 * 3

⇒ v = 0 + 15

⇒ v = 15

➜ Velocity after 3 seconds is 15 m/s