Question

An object starting form rest travels with an acceleration of 5m/s2 .what will be its velocity after 3 s ?

Answer 1

Answer:

15m/s

Explanation:

By using,

v = u + at

u = 0

a = 5m/s^2

At t = 3s

v = 5 × 3 m/s

v = 15m/s

Answer 2

Therefore the final velocity of the object after 3 seconds is 15 m/s.

Given:

The acceleration of an object = a = 5 m/s²

Time period = t = 3 s

Initial Velocity of the object = u = 0 m/s

To Find:

The final velocity ( v ) of the object after 3 s.

Solution:

The given question can be easily solved using the below-shown approach.

Given that,

The acceleration of an object = a = 5 m/s²

Time period = t = 3 s

Initial Velocity of the object = u = 0 m/s

Using the formula of kinematics,

⇒ v = u + at

Substituting the values of u, a, and t in the above equation.

⇒ v = 0 + ( 5 × 3 ) = 15

Therefore the final velocity of the object after 3 seconds is 15 m/s.

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