Question

a car starts from rest and acclerate uniformly at 2m for 10s . what is its velocity at the end of 10s​

Answer 1

the velocity at the end of 10s is negative

Answer 2

Answer :

Initial velocity = zero

Acceleration of car = 2m/s²

We have to find velocity of car at the end of 10s$.$

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◈ What is acceleration ?

Acceleration is defined as the rate of change of velocity.

It is a vector quantity having both magnitude as well as direction.

SI unit : m/s²

Mathematically, a = (v - u)/t

⇒ a = (v - u)/t

⇒ 2 = (v - 0)/10

⇒ v = 20m/s

Hence, final velocity of car at the end of 10s is 20m/s.