Question

a car starts from rest and moves with an acceleration of 2m/s² . what is the velocity of car at the end of 10 sec.​

Answer 1

Initial velocity = 0

Acceleration = 2 m/s²

Time = 10s

Use 1st equation of Kinematics

⇒v = u + at

⇒v = 0 + 2 * 10

⇒v = 20 m/s

✪ Velocity at end of 10s will be 20 m/s

Answer 2

Answer :

➥ The final velocity of a car = 20 m/s

Given :

➤ Intial velocity of a car (u) = 0 m/s

➤ Acceleration of a car (a) = 2 m/s²

➤ Time taken by a car (t) = 10 sec

To Find :

➤ Final velocity of a car (v) = ?

Solution :

We can find final velocity by using the first equation of motion which says v = u + at,

☃️ So let's calculate v !

From first equation of motion

→ v = u + at

→ v = 0 + 2 × 10

→ v = 0 + 20

→ v = 20 m/s

║ Hence, the final velocity of a car is 20 m/s². ║

$\:$

Some related equations :

⪼ v = u + at

⪼ s = ut + ½ at²

⪼ v² = u² + 2as

Where,

• v is the final velocity.
• u is the intial velocity.
• a is the acceleration.
• t is the time taken.
• s is the distance.

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