Question

a train starts from rest and accelerate uniformly at the rate of 5 m/s ² for 5 sec . calculate the velocity of train in 5 sec ??

Answer 1

Explanation:

according to kinematic equations,

v=gt

=5×5

=10

Hence 10 m/s velocity would be needed

Answer 2

Given :

• A train starts from rest and accelerate uniformly at the rate of 5 m/s² for 5 sec.

　

To find :

• Calculate the velocity of train in 5 sec?

　

Using formula :

• First equation of motion.

★ Final velocity = Initial velocity + Acceleration × Time.

　

Calculations :

→ v = u + at

→ v = 0 + 5 (5)

→ v = 0 + 25

→ v = 25 m/s

Therefore, the velocity of the train in 5 seconds is 25 m/s.